Cisco Packet Tracer 5.3.2

Cisco Packet Tracer 5.3.2

Cisco Packet Tracer Software Downloads
Packet Tracer Version 5.3 2 Software Downloads
Packet Tracer version 5.3.2 is a maintenance release that fixes functional and technical issues in the previous versions. It replaces Packet Tracer version 5.3.1
Packet Tracer 5.3 2 supports activities authored in Packet Tracer 4.0, 4.1, 4.11, 5.0, 5.1, 5.2.x , and 5.3.x Please note that the last two courses of the CCNA Discovery and CCNA Exploration curricula require Packet Tracer version 4.11 at a minimum, CCNA Security requires version 5.2 at a minimum, and the beta Packet Tracer Skills Based Assessments require version 5.2.1 at a minimum. The curricula are fully compatible with Packet Tracer 5.3.2
You can download both the Packet Tracer application and tutorial files in one download package. However, due to the large file size it is faster to download the application by itself, if that is all you need. Choose the download option appropriate for your needs.

Windows:

Title Document Type Packet Tracer v5.3.2 Application + Tutorial This is the complete Packet Tracer program including tutorials as a single downloadable package for Windows 2000, XP and Vista. (EXE - 80 MB) Packet Tracer v5.3.2 Application only This option is just the Packet Tracer program and the help files for Windows 2000, XP and Vista. It does not include the tutorial files. The tutorial files are not necessary to run Packet Tracer. (EXE - 47 MB)

Linux:
Use Firefox to download the Linux.bin files as Internet Explorer doesn't load them correctly.
To install the Linux BIN packages, set the permission to be executable (chmod +x PacketTracer52_*.bin) then execute the binary in the terminal.

Title	Document Type
Packet Tracer v5.3.2 Application + Tutorial Linux-Ubuntu This is the complete Packet Tracer program including tutorials as a single downloadable package for Ubuntu release 7.10.	(BIN - 101 MB)
Packet Tracer v5.3.2 Application only Linux-Ubuntu This option is just the Packet Tracer program and the help files for Ubuntu release 7.10. It does not include the tutorial files. The tutorial files are not necessary to run Packet Tracer.	(BIN - 68 MB)
Packet Tracer v5.3.2 Application + Tutorial - Generic Ubuntu This is the complete Packet Tracer program including tutorials for generic Ubuntu	(tar.gz - 102 MB)
Packet Tracer v5.3.2 Application + Tutorial Linux-Fedora This is the complete Packet Tracer program including tutorials as a single downloadable package for Fedora release 7.	(BIN - 98 MB)
Packet Tracer v5.3.2 Application only Linux-Fedora This option is just the Packet Tracer program and the help files for Fedora release 7. It does not include the tutorial files. The tutorial files are not necessary to run Packet Tracer.	(BIN - 65 MB)
Packet Tracer v5.3.2 Application + Tutorial Generic Fedora This is the complete Packet Tracer program including tutorials for generic Fedora	(tar.gz - 99 MB)

Related Posts by Categories

Packet Tracer

• Packet Tracer 5.3.1 Free Downloads Available
• Packet Tracer Version 5.3 Software Downloads

Packet Tracer Tutorials

• Packet Tracer 5.3.1 Free Downloads Available
• Configure A Router With Packet Tracer
• Download Packet Tracer 5 For Free

Packet Tracer Version 5.3 Software Downloads

• Packet Tracer Version 5.3 Software Downloads

CCNA - Hotspot Questions

CCNA - Hotspot Questions

Hotspot Routing Question

Question 1:

If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network?
A - R1 will forward the packet out all interfaces
B - R1 will drop this packet because it is not a valid IP address
C - As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table
D - R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FF
E - As R1 forwards the frame containing this packet, Sw-A will forward it ti the device assigned the IP address of 192.168.1.255

Answer: B

Question 2:

Users on the 192.168.1.0/24 network must access files located on the Server 1. What route could be configured on router R1 for file requests to reach the server?
A - ip route 0.0.0.0 0.0.0.0 s0/0/0
B - ip route 0.0.0.0 0.0.0.0 209.165.200.226
C - ip route 209.165.200.0 255.255.255.0 192.168.1.250
D - ip route 192.168.1.0 255.255.255.0 209.165.100.250

Answer: A

Quetion 3:

When a packet is sent from Host 1 to Server 1, in how many different frames will the packet be encapsulated as it is sent across the internetwork?
A - 0
B - 1
C - 2
D - 3
E - 4

Answer: D

Question 4:

What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?
A - On router R2,configure a default static route to the 192.168.1.0 network
B - On router r2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address
C - On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10
D - On router R1, configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2

Answer: C

Question 5:

The router address 192.168.1.250 is the default gateway for both the Web Server 2 and Host 1. What is the correct subnet mask for this network?
A - 255.255.255.0
B - 255.255.255.192
C - 255.255.255.250
D - 255.255.255.252

Answer: A

Hotspot Frame-relay Question

Question 1:

What destination Layer 2 address will be used in the frame header containing a packet for host 172.30.4.4?
A - 704
B - 196
C - 702
D - 344

Answer: C

Question 2:

A static map to the S-AMER location is required. Which command should be used to create this map?
A - frame-relay map ip 172.30.0.3 704 broadcast
B - frame-relay map ip 172.30.0.3 196 broadcast
C - frame-relay map ip 172.30.0.3 702 broadcast
D - frame-relay map ip 172.30.0.3 344 broadcast

Answer: B

Question 3:

Which connection uses the default encapsulation for serial interfaces on Cisco routers?
A - The serial connection to the MidEast branch office
B - The serial connection to the DeepSouth branch office
C - The serial connection to the NorthCentral branch office
D - The serial connection to the Multinational Core

Answer: A

Question 4:

If required, what password should be configured on the router in the MidEast branch office to allow a connection to be established with the Dubai router?
A - No password is required
B - Enable
C - Scr
D - Telnet
E - Console

Answer: D

List of Questions for mock-Interviews:1).Tell me about yourself.
2).Have you brought your resume?
3).What do you know about our organization?
4).What experience do you have?
5).According to your definition of success, how successful have you been so far?
6).What are your most significant accomplishments in your life so far?
7).Would you describe a few situations in which your work was criticized?
8).How would you describe your personality?
9).What are your strong points?
10).What are your weak points?
11).How did you do in school?
12).What do you look for in a job?
13).How long would it take you to make a meaningful contribution to our firm?
14).How long would you stay with us?
15).Describe what would be an ideal working environment?
16).Do you prefer working with figures, or with words?
17).What kinds of people do you find difficult to work with?
18).If you had your choice of jobs and companies, where would you go?
19).Why do you want to work for us?
20).What was the last book you read? Movie you saw? Sporting event you attended?
21).What are you doing, or what have you done to reach your career objectives?
22).What kind of hours are you used to working?
23).What would you do for us?
24).Describe some situations in which you have worked under pressure or met deadlines?
25).How do you handle rejection?
26).Give an example of your creativity.
27).Give examples of your leadership abilities.
28).What are your career goals?
29).What position do you expect to have in two years?
30).What are your objectives?
31).Why should we hire you?
32).You may be over-qualified or too experienced for the position we have to offer.
33).Why haven’t you found a new position before now?
34).If you could start again, what would you do differently?
35).Describe your ideal career?
36).How did you apply for the job?
37).Why do you want to work here?
38).Don't you think that you are over qualified for this job?
39).What competition do you see if you take up this job?
40).What would you do if our competitor offer you a job?
41).What salary do you expect?
42).What interests you most about the job?
43).What is your dream job?
44).Why should we take you?
45).How is your experience relevant to this job?
46).How do you manage stress in your daily work?
47).Describe a professional skill you have developed in you?
48).How do you manage your work to meet dead lines
49).What can motivate you?
50).Whom do you choose as your reference and why?
51).Can we call all your references?
52).Do you have any questions?
53).How do you handle criticism
54).How do you handle tension?
55).Describe a typical work week.
56).How many hours do you normally work?
57).How would you describe the pace at which you work?
58).What motivates you?
59).What do you find are the most difficult decisions to make?
60).If the people who know you were asked why you should be hired, what would they say?
61).Do you prefer to work independently or on a team?
62).Give some examples of team work
63).What type of work environment do you prefer?
64).Describe a difficult work situation / project and how you overcame it.
65).How do you evaluate success?
66).What interests you about this job?
67).Why do you want this job?
68).What applicable attributes / experience do you have?
69).Are you overqualified for this job?
70).What can you do for this company?
71).Why should we hire you?
72).Why are you the best person for the job?
73).Why do you want to work for this organization?
74).What challenges are you looking for in a position?
75).What can you contribute to this company?
76).Are you willing to travel?
77).Is there anything I haven't told you about the job or company that you would like to know?
78).Describe a situation in which you were able to use persuasion to successfully convince someone to see things your way
79).Describe a time when you were faced with a stressful situation that demonstrated your coping skills
80).Give me a specific example of a time when you used good judgment and logic in solving a problem
81).Give me an example of a time when you set a goal and were able to meet or achieve it
82).Tell me about a time when you had to use your presentation skills to influence someone's opinion
83).Give me a specific example of a time when you had to conform to a policy with which you did not agree
84).Please discuss an important written document you were required to complete
85).Tell me about a time when you had to go above and beyond the call of duty in order to get a job done
86).Tell me about a time when you had too many things to do and you were required to prioritize your tasks
87).Give me an example of a time when you had to make a split second decision
88).What is your typical way of dealing with conflict? Give me an example
89).Tell me about a time you were able to successfully deal with another person even when that individual may not have personally liked you (or vice versa)
90).Tell me about a difficult decision you've made in the last year
91).Give me an example of a time when something you tried to accomplish and failed
92).Give me an example of when you showed initiative and took the lead
93).Tell me about a recent situation in which you had to deal with a very upset customer or co-worker
94).Give me an example of a time when you motivated others
95).Tell me about a time when you delegated a project effectively
96).Give me an example of a time when you used your fact-finding skills to solve a problem
97).Tell me about a time when you missed an obvious solution to a problem
98).Describe a time when you anticipated potential problems and developed preventive measures
99).Tell me about a time when you were forced to make an unpopular decision.

Cisco Networking Academy Curriculum Setup – Download:

CCNA Exploration 1, 2, 3, and 4. All version 4.0.

• CCNA 1:
  CCNA Exploration 1 (Network Fundamentals) Curriculum Installer (26358)
• CCNA 2:
  CCNA Exploration 2 (Routing Protocols and Concepts) Curriculum Installer (19098)
• CCNA 3:
  CCNA Exploration 3 (LAN Switching and Wireless) Curriculum Installer (17172)
• CCNA 4:
  CCNA Exploration 4 (Accessing the WAN) Curriculum Installer (17015)

I hope they help. Study hard! I hope the installers help those who are about to take the CCNA exam and students taking up CCNA Exploration courses.
I’m not a CCNA Cisco Certified Network Associate, nor do I plan to take the CCNA examination in the future. However, my boyfiend took the CCNA exam, passed, and is now a CCNA. I admire his high intelligence and believe that he can achieve many great things (that he wants) with little effort.

Auto-Generated Related Posts:

Samba and LDAP

This section covers configuring Samba to use LDAP for user, group, and machine account information and authentication. The assumption is, you already have a working OpenLDAP directory installed and the server is configured to use it for authentication. See the section called “OpenLDAP Server” and the section called “LDAP Authentication” for details on setting up OpenLDAP. For more information on installing and configuring Samba see Chapter 17, Windows Networking.

Installation

There are three packages needed when integrating Samba with LDAP. samba, samba-doc, and smbldap-tools packages . To install the packages, from a terminal enter:

sudo apt-get install samba samba-doc smbldap-tools

Strictly speaking the smbldap-tools package isn't needed, but unless you have another package or custom scripts, a method of managing users, groups, and computer accounts is needed.

OpenLDAP Configuration

In order for Samba to use OpenLDAP as a passdb backend, the user objects in the directory will need additional attributes. This section assumes you want Samba to be configured as a Windows NT domain controller, and will add the necessary LDAP objects and attributes.

• The Samba attributes are defined in the samba.schema file which is part of the samba-doc package. The schema file needs to be unzipped and copied to /etc/ldap/schema. From a terminal prompt enter:
  

  sudo cp /usr/share/doc/samba-doc/examples/LDAP/samba.schema.gz /etc/ldap/schema/
  sudo gzip -d /etc/ldap/schema/samba.schema.gz
  

• The samba schema needs to be added to the cn=config tree. The procedure to add a new schema to slapd is also detailed in the section called “Further Configuration”.
  
  1. First, create a configuration file named schema_convert.conf, or a similar descriptive name, containing the following lines:
     

     include /etc/ldap/schema/core.schema
     include /etc/ldap/schema/collective.schema
     include /etc/ldap/schema/corba.schema
     include /etc/ldap/schema/cosine.schema
     include /etc/ldap/schema/duaconf.schema
     include /etc/ldap/schema/dyngroup.schema
     include /etc/ldap/schema/inetorgperson.schema
     include /etc/ldap/schema/java.schema
     include /etc/ldap/schema/misc.schema
     include /etc/ldap/schema/nis.schema
     include /etc/ldap/schema/openldap.schema
     include /etc/ldap/schema/ppolicy.schema
     include /etc/ldap/schema/samba.schema
     

  2. Next, create a temporary directory to hold the output:
     

     mkdir /tmp/ldif_output
     

  3. Now use slapcat to convert the schema files:
     

     slapcat -f schema_convert.conf -F /tmp/ldif_output -n0 -s "cn={12}samba,cn=schema,cn=config" > /tmp/cn=samba.ldif
     

     Change the above file and path names to match your own if they are different.
     
  4. Edit the generated /tmp/cn\=samba.ldif file, changing the following attributes:
     

     dn: cn=samba,cn=schema,cn=config
     ...
     cn: samba
     

     And remove the following lines from the bottom of the file:
     

     structuralObjectClass: olcSchemaConfig
     entryUUID: b53b75ca-083f-102d-9fff-2f64fd123c95
     creatorsName: cn=config
     createTimestamp: 20080827045234Z
     entryCSN: 20080827045234.341425Z#000000#000#000000
     modifiersName: cn=config
     modifyTimestamp: 20080827045234Z
     

     	The attribute values will vary, just be sure the attributes are removed.

  5. Finally, using the ldapadd utility, add the new schema to the directory:
     

     ldapadd -x -D cn=admin,cn=config -W -f /tmp/cn\=samba.ldif
     

  There should now be a dn: cn={X}misc,cn=schema,cn=config, where "X" is the next sequential schema, entry in the cn=config tree.
  
• Copy and paste the following into a file named samba_indexes.ldif:
  

  dn: olcDatabase={1}hdb,cn=config
  changetype: modify
  add: olcDbIndex
  olcDbIndex: uidNumber eq
  olcDbIndex: gidNumber eq
  olcDbIndex: loginShell eq
  olcDbIndex: uid eq,pres,sub
  olcDbIndex: memberUid eq,pres,sub
  olcDbIndex: uniqueMember eq,pres
  olcDbIndex: sambaSID eq
  olcDbIndex: sambaPrimaryGroupSID eq
  olcDbIndex: sambaGroupType eq
  olcDbIndex: sambaSIDList eq
  olcDbIndex: sambaDomainName eq
  olcDbIndex: default sub
  

  Using the ldapmodify utility load the new indexes:
  

  ldapmodify -x -D cn=admin,cn=config -W -f samba_indexes.ldif
  

  If all went well you should see the new indexes using ldapsearch:
  

  ldapsearch -xLLL -D cn=admin,cn=config -x -b cn=config -W olcDatabase={1}hdb
  

• Next, configure the smbldap-tools package to match your environment. The package comes with a configuration script that will ask questions about the needed options. To run the script enter:
  

  sudo gzip -d /usr/share/doc/smbldap-tools/configure.pl.gz
  sudo perl /usr/share/doc/smbldap-tools/configure.pl
  

  Once you have answered the questions, there should be /etc/smbldap-tools/smbldap.conf and /etc/smbldap-tools/smbldap_bind.conf files. These files are generated by the configure script, so if you made any mistakes while executing the script it may be simpler to edit the file appropriately.
  
• The smbldap-populate script will add the necessary users, groups, and LDAP objects required for Samba. It is a good idea to make a backup LDAP Data Interchange Format (LDIF) file with slapcat before executing the command:
  

  sudo slapcat -l backup.ldif
  

• Once you have a current backup execute smbldap-populate by entering:
  

  sudo smbldap-populate
  

  	You can create an LDIF file containing the new Samba objects by executing sudo smbldap-populate -e samba.ldif. This allows you to look over the changes making sure everything is correct.

Your LDAP directory now has the necessary domain information to authenticate Samba users.

Samba Configuration

There a multiple ways to configure Samba for details on some common configurations see Chapter 17, Windows Networking. To configure Samba to use LDAP, edit the main Samba configuration file /etc/samba/smb.conf commenting the passdb backend option and adding the following:

#   passdb backend = tdbsam

# LDAP Settings
   passdb backend = ldapsam:ldap://hostname
   ldap suffix = dc=example,dc=com
   ldap user suffix = ou=People
   ldap group suffix = ou=Groups
   ldap machine suffix = ou=Computers
   ldap idmap suffix = ou=Idmap
   ldap admin dn = cn=admin,dc=example,dc=com
   ldap ssl = start tls
   ldap passwd sync = yes
...
   add machine script = sudo /usr/sbin/smbldap-useradd -t 0 -w "%u"

Restart samba to enable the new settings:

sudo restart smbd
sudo restart nmbd

Now Samba needs to know the LDAP admin password. From a terminal prompt enter:

sudo smbpasswd -w secret

	Replacing secret with your LDAP admin password.

If you currently have users in LDAP, and you want them to authenticate using Samba, they will need some Samba attributes defined in the samba.schema file. Add the Samba attributes to existing users using the smbpasswd utility, replacing username with an actual user:

sudo smbpasswd -a username

You will then be asked to enter the user's password.
To add new user, group, and machine accounts use the utilities from the smbldap-tools package. Here are some examples:

• To add a new user to LDAP with Samba attributes enter the following, replacing username with an actual username:
  

  sudo smbldap-useradd -a -P username
  

  The -a option adds the Samba attributes, and the -P options calls the smbldap-passwd utility after the user is created allowing you to enter a password for the user.
  
• To remove a user from the directory enter:
  

  sudo smbldap-userdel username
  

  The smbldap-userdel utility also has a -r option to remove the user's home directory.
  
• Use smbldap-groupadd to add a group, replacing groupname with an appropriate group:
  

  sudo smbldap-groupadd -a groupname
  

  Similar to smbldap-useradd, the -a adds the Samba attributes.
  
• To add a user to a group use smbldap-groupmod:
  

  sudo smbldap-groupmod -m username groupname
  

  Be sure to replace username with a real user. Also, the -m option can add more than one user at a time by listing them in comma separated format.
  
• smbldap-groupmod can also be used to remove a user from a group:
  

  sudo smbldap-groupmod -x username groupname
  

• Additionally, the smbldap-useradd utility can add Samba machine accounts:
  

  sudo smbldap-useradd -t 0 -w username
  

  Replace username with the name of the workstation. The -t 0 option creates the machine account without a delay, while the -w option specifies the user as a machine account. Also, note the add machine script option in /etc/samba/smb.conf was changed to use smbldap-useradd.
  

There are more useful utilities and options in the smbldap-tools package. The man page for each utility provides more details.

Exporting data to Excel from LDAP Using LDAP Admin Tool

This tutorial explains how to export data to excel using LDAP Admin Tool; To export data first connect to the directory server (To create a new connection please see Connecting to a LDAP Server using LDAP Admin Tool)
To connect:

• Click the Open Connection button from the main tool bar. The Open LDAP Connection dialog opens
• Select the connection and click “Connect”.

After successful connection, select the entry you want to export and select “Excel Export” from right click context menu

On the wizard page, just provide the “Excel File Name”, increase the “Count Limit” to expected number of records, leave everything else to default and click finish.                     

OR

Fill out the wizard page that is displayed as follows and click finish:

Options	Description
Excel File Name	The Excel file to export to. Type in the full path or browse, to select the path on the file system. The drop-down list provides a history of recently used files.
Search Base	The base DN of the search. You could edit the DN or select a recently used DN from drop-down list or browse  to open the DN Selector dialog.
Filter	Enter a valid LDAP search filter. The drop-down list provides a history of recently used filters. A click to the filter editor button opens the Create Filter dialog.
Returning Attributes	A list of attributes to return, the default is All User Attribute with DN.You can sleect the option from the drop down menu. The drop down menu provides the following options: All User Attributes with DN All User Attributes without DN All User Attributes with DN and with operational Attributes All User Attributes without DN and with operational Attributes   Select from the List .... Select from the List option will open the Select Attributes Dialog, where you can select the attributes to return. You can also open the select attributes dialog from the Browse.. Button.
Search Scope	You can choose from the following options: Base (Search only the base - this option will only return the base entry) One Level (Search only the immediate children of base DN) Subtree (Search the base DN and all its subentries)
Count Limit	The maximum number of entries the server should return, value 0 (zero)means no limit. Note that this value is a client-side limit; it's possible that also a server-side limit is used.
Time Limit	The maximum time in milliseconds the server should search. Value 0 (zero) means no limit. Note that this value is a client-side value; it's possible that also a server-side limit is used.
Enable Referrals	An indicator whether to follow referrals or not.
Replace file if Exists	If the export file already exists, you must permit to overwrite the file or it will ask when you click finish.
Format DateTime	If you check this box the export process will automatically format the dateTime to local time zone date time. The default format is EEE MMM dd yyyy HH:mm:ss 'GMT'Z for e.g ( Sate Apr 12 2008 20:32:52 GMT -0500) . You can modify the date time format by clicking the DateTimeFormat Link
Restore Defaults	Restore Defaults will restore the default filter and all the other fields to default values.

To view the file on finish, click the “Open File”.

---

Select attributes to export
To select the attributes from the list, select the “Select from the List…” from the returning attributes drop down, It will open the dialog where you can select the list of attributes to export
Or type in the attributes separated by “,” like dn, cn, mail

Connecting to a LDAP Server

Once you have downloaded and installed the LDAP Admin Tool, click on the LDAP Admin Tool shortcut to start the application. When the application is started it will look like the following: Click the Create a new Connection link or Click the New Connection button from the main tool bar. The New LDAP Connection wizard opens. Fill out the first wizard page that is displayed as follows: The “Connection Name” field should contain a unique name for this connection, this can be anything. The “Hostname” field should contain the address of the system running the directory instance (DNS name or IP Address of the machine. For example localhost or 127.0.0.1). The “Port” field should contain the port number on which the directory server is listening for client connections. In most cases it is 389 for non SSL connections and 636 for SSL connections. If you want to use SSL, then you will also need to check the “Use SSL/TLS” check box. The "Base DN" field can be left blank in most cases. However, if you want you can use the "Fetch Base DNs" button to select a base DN from the namingContexts attribute of the root DSE, or you can enter a specific base DN. To make sure that you entered the information correctly, click on the “Test Connection” button. If you only intend to browse the data and don't want to make any changes in the server, and if the server is configured to allow unauthenticated access, then you can click the “Finish” button to connect to directory server. However, if the server does not allow anonymous access, or if you may want to make any changes to the data in the server, then you will likely need to provide values for the "Bind DN" and "Password" fields. To enter credentials click the “Next” button. To provide values for “Bind DN” and “Password”, first click the “Simple Authentication” radio button, this will enable the fields. Now enter the values and to make sure you typed in the right values click the “Check Credentials” button. If you want to provide the optional values click the “Next” button to go to third page else click “Finish” to connect to the directory server. In the wizard's third page select the additional connection parameter. If you are not sure what they should be just leave them to default and click Finish to connect to directory server. Derefence Aliases field sets a preference indicating whether or not aliases should be dereferenced, and if so, when Never - do not dereference aliases Searching - dereference aliases when searching but not when finding the base Finding - dereference aliases when finding Always - dereference aliases when finding the base object and when searching Entry count Limit should contain the maximum number of search results to return for a search request. 0 means no limit. Default is 1000. Timeout should contain the maximum time in seconds that the server should spend returning search results. This is a server-enforced limit. The default of 0 means no time limit. Enable Referrals specifies whether to automatically follow referrals or not. Check the box to follow referrals automatically. Default is true. To connect to the server on finish check the “Connect now” check box. Click Finish to connect to directory server. Unable to Read Schema While connecting if you get a warning like this, you need to connect to directory server with credentials. There are many ways to provide credentials for connection; the simplest way to provide credentials is to close the connection and click on the Open Connection Button from the tool bar, select the connection and enter the User DN and Password values or click configure and provide User DN and Password in the credentials tab. Don’t know the complete User DN to bind with? Connect to the directory server using anonymous bind (Click Finish on the wizard page 1). Once you are connected to the server Select the entry to bind with ..  and select the Rebind using this entry from the right click context menu Enter the password and click save userDN and Password if you want this userDN and password to be used for future connections.

NETWORK TOPOLOGY

NETWORK TOPOLOGY

Network topology

Network topology is the study of the arrangement or mapping of the elements (links, nodes, etc.) of a network, especially the physical (real) and logical (virtual) interconnections between nodes.[1][2] A local area network (LAN) is one example of a network that exhibits both a physical topology and a logical topology. Any given node in the LAN will have one or more links to one or more other nodes in the network and the mapping of these links and nodes onto a graph results in a geometrical shape that determines the physical topology of the network. Likewise, the mapping of the flow of data between the nodes in the network determines the logical topology of the network. The physical and logical topologies might be identical in any particular network but they also may be different.
Any particular network topology is determined only by the graphical mapping of the configuration of physical and/or logical connections between nodes. LAN Network Topology is, therefore, technically a part of graph theory. Distances between nodes, physical interconnections, transmission rates, and/or signal types may differ in two networks and yet their topologies may be identical

MAN CONNECTION

Metropolitan area networks, or MANs, are large computer networks usually spanning a city. They typically use wireless infrastructure or Optical fiber connections to link their sites.

A MAN is optimized for a larger geographical area than a LAN, ranging from several blocks of buildings to entire cities. MANs can also depend on communications channels of moderate-to-high data rates. A MAN might be owned and operated by a single organization, but it usually will be used by many individuals and organizations. MANs might also be owned and operated as public utilities. They will often provide means for internetworking of local networks. Metropolitan area networks can span up to 50km, devices used are modem and wire/cable

Implementation
Some technologies used for this purpose are ATM, FDDI, and SMDS. These older technologies are in the process of being displaced by Ethernet-based MANs (e.g. Metro Ethernet) in most areas. MAN links between LANs have been built without cables using either microwave, radio, or infra-red laser links. Most companies rent or lease circuits from common carriers due to the fact that laying long stretches of cable can be expensive.
DQDB, Distributed Queue Dual Bus, is the Metropolitan Area Network standard for data communication. It is specified in the IEEE 802.6 standard. Using DQDB, networks can be up to 20 miles (30 km) long and operate at speeds of 34 to 155 Mbit/s.
Several notable networks started as MANs, such as the Internet peering points MAE-West, MAE-East, and the Sohonet media network 

 

WAN CONNECTION

Wide area network

Wide Area Network (WAN) is a computer network that covers a broad area (i.e., any network whose communications links cross metropolitan, regional, or national boundaries [1]). In contrast with personal area networks (PANs), local area networks (LANs), campus area networks (CANs), or metropolitan area networks (MANs) which are usually limited to a room, building, campus or specific metropolitan area (e.g., a city) respectively. The largest and most well-known example of a WAN is the Internet.
WANs [a] are used to connect LANs and other types of networks together, so that users and computers in one location can communicate with users and computers in other locations. Many WANs are built for one particular organization and are private. Others, built by Internet service providers, provide connections from an organization's LAN to the Internet. WANs are often built using leased lines. At each end of the leased line, a router connects to the LAN on one side and a hub within the WAN on the other. Leased lines can be very expensive. Instead of using leased lines, WANs can also be built using less costly circuit switching or packet switching methods. Network protocols including TCP/IP deliver transport and addressing functions. Protocols including Packet over SONET/SDH, MPLS, ATM and Frame relay are often used by service providers to deliver the links that are used in WANs. X.25 was an important early WAN protocol, and is often considered to be the "grandfather" of Frame Relay as many of the underlying protocols and functions of X.25 are still in use today (with upgrades) by Frame Relay.
Academic research into wide area networks can be broken down into three areas: Mathematical models, network emulation and network simulation.

ETHERNET

ETHERNET CABLE
About the Cable:You can find bulk supplies of the cable at many computer stores or most electrical or home centers. You want UTP (Unshielded Twisted Pair) Category 5 cable for basic 10/100 functionality. You want CAT 5e for gigabit (1000BaseT) operation and CAT 6 or 7 gives you a measure of future proofing. Bulk cable comes in many types, there are 2 basic categories, solid and braided cable. Braided cable tends to work better in patch applications for desktop use. It is more flexible and resilient than solid cable and easier to work with, but really meant for shorter lengths. Solid cable is meant for longer runs in a fixed position. Plenum rated cable must be used whenever the cable travels through an air circulation space. For example, above a false ceiling or below a raised floor. It may be difficult or impossible to tell from the package what type of cable it is, so peal out an end and investigate.
Here is what the internals of the cable look like:
Internal Cable Structure and Color Coding
Inside the cable, there are 8 color coded wires. These wires are twisted into 4 pairs of wires, each pair has a common color theme. One wire in the pair being a solid or primarily solid colored wire and the other being a primarily white wire with a colored stripe (Sometimes cables won't have any color on the striped wire, the only way to tell which is which is to check which wire it is twisted around). Examples of the naming schemes used are: Orange (alternatively Orange/White) for the solid colored wire and White/Orange for the striped cable. The twists are extremely important. They are there to counteract noise and interference. It is important to wire according to a standard to get proper performance from the cable. The TIA/EIA-568-A specifies two wiring standards for an 8-position modular connector such as RJ45. The two wiring standards, T568A and T568B vary only in the arrangement of the colored pairs. Tom writes to say "...sources suggest using T568A cabling since T568B is the AT&T standard, but the US Government specifies T568A since it matches USOC cabling for pairs 1 & 2, which allows it to work for 1/2 line phones...". Your choice might be determined by the need to match existing wiring, jacks or personal preference, but you should maintain consistency. I've shown both below for straight through cabling and just T568B for cross over cabling.

A local area network (LAN) is a computer network covering a small physical area (Within 1 KM), like a home, office, or small group of buildings, such as a school, or an airport. The defining characteristics of LANs, in contrast to wide-area networks (WANs), include their usually higher data-transfer rates, smaller geographic place, and lack of a need for leased telecommunication lines.

Wireless LAN

A wireless LAN (WLAN) is a wireless local area network that links two or more computers or devices using spread-spectrum or OFDM modulation technology based to enable communication between devices in a limited area. This gives users the mobility to move around within a broad coverage area and still be connected to the network.
For the home user, wireless has become popular due to ease of installation, and location freedom with the gaining popularity of laptops. Public businesses such as coffee shops or malls have begun to offer wireless access to their customers; some are even provided as a free service. Large wireless network projects are being put up in many major cities: New York City, for instance, has begun a pilot program to cover all five boroughs of the city with wireless Internet access.

Magic Tables in SQL Server

Magic Tables in SQL Server

Magic Table in SQL Server:
Magic tables are used to put all the deleted and updated rows. We can retrieve the
column values from the deleted rows using the keyword "deleted"

To project the deleted data into the deleted table we will use "output" clause
Below is the sample code to retrieve the deleted data.

Code Snippet

DECLARE @DeletedTable TABLE(DeletedTableID INT, DeletedData VARCHAR(20)) DELETE VENKATOutput OUTPUT Deleted.KeyID, Deleted.Name INTO @DeletedTable WHERE KeyID > 3 SELECT * FROM @DeletedTable

Similarly, we can retrieve the updated data and old data too using the keyword "Inserted"

Deadlocks in SQL Server

Deadlock occurs if multiple users tried to access the resources holding some resources with them to finish the task. Dead lock can be avoided by using Lock methods in sql server.Locks can be classified in various types like

1. Rowlevel locking,
2. Page level locking,
3. Table level locking.

Row level locking: A specific row in the table will be locked by the user and meantime no one can access those rows.
Page level locking: In this case, we used to lock a particular page which hold 8 KB of data.
Table level lock: Here, entire table will be locked.

Conceptually there are various types of locks like,

Shared lock : The lock is shared by the users. One person can update the data meantime other persons can select the data.
Exclusive lock: No one can access the data until the concerned person releases the lock.