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Networking - Security

Why Networking Security?

In this section you can learn and practice Networking Questions based on "Security" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

Where can I get Networking Security questions and answers with explanation?

IndiaBIX provides you lots of fully solved Networking (Security) questions and answers with Explanation. Solved examples with detailed answer description, explanation are given and it would be easy to understand. All students, freshers can download Networking Security quiz questions with answers as PDF files and eBooks.

Where can I get Networking Security Interview Questions and Answers (objective type, multiple choice)?

Here you can find objective type Networking Security questions and answers for interview and entrance examination. Multiple choice and true or false type questions are also provided.

How to solve Networking Security problems?

You can easily solve all kind of Networking questions based on Security by practicing the objective type exercises given below, also get shortcut methods to solve Networking Security problems.

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Exercise :: Security - Security

  • Security - Security
1. 

Which of the following is true regarding access lists applied to an interface?
A. You can place as many access lists as you want on any interface until you run out of memory.
B. You can apply only one access list on any interface.
C. One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
D. You can apply two access lists to any interface.

Answer: Option C

Explanation:

A Cisco router has rules regarding the placement of access lists on a router interface. You can place one access list per direction for each layer 3 protocol configured on an interface.
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2. 

Which command would you use to apply an access list to a router interface?
A. ip access-list 101 out
B. access-list ip 101 in
C. ip access-group 101 in
D. access-group ip 101 in

Answer: Option C

Explanation:

To apply an access list, the proper command is ip access-group 101 in.
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3. 

Which of the following is an example of a standard IP access list?
A. access-list 110 permit host 1.1.1.1
B. access-list 1 deny 172.16.10.1 0.0.0.0
C. access-list 1 permit 172.16.10.1 255.255.0.0
D. access-list standard 1.1.1.1

Answer: Option B

Explanation:

Standard IP access lists use the numbers 1-99 and 1300-1999 and filter based on source IP address only. Option C is incorrect because the mask must be in wildcard format.
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4. 

You need to create an access list that will prevent hosts in the network range of 192.168.160.0 to 192.168.191.0. Which of the following lists will you use?
A. access-list 10 deny 192.168.160.0 255.255.224.0
B. access-list 10 deny 192.168.160.0 0.0.191.255
C. access-list 10 deny 192.168.160.0 0.0.31.255
D. access-list 10 deny 192.168.0.0 0.0.31.255

Answer: Option C

Explanation:

The range of 192.168.160.0 to 192.168.191.0 is a block size of 32. The network address is 192.168.160.0 and the mask would be 255.255.224.0, which for an access list must be a wildcard format of 0.0.31.255. The 31 is used for a block size of 32. The wildcard is always one less than the block size.
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5. 

You are working on a router that has established privilege levels that restrict access to certain functions. You discover that you are not able to execute the command show running-configuration. How can you view and confirm the access lists that have been applied to the Ethernet 0 interface on your router?
A. show access-lists
B. show interface Ethernet 0
C. show ip access-lists
D. show ip interface Ethernet 0

Answer: Option D

Explanation:

The only command that shows which access lists have been applied to an interface is show ip interface Ethernet 0. The command show access-lists displays all configured access lists, and show ip access-lists displays all configured IP access lists, but neither command indicates whether the displayed access lists have been applied to an interface.
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