CCNA ( Network Basic Question 15 )

Which protocol is used to send a destination network unknown message back to originating hosts?

A. TCP

B. ARP

C. ICMP

D. BootP







Answer & Explanation
Answer: Option C


Explanation:


ICMP (Internet Control Message Protocol )is the protocol at the Network layer that is used to send messages back to an originating router.

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CCNA ( Network Basic Question 14 )

 
What does the passive command provide to dynamic routing protocols?

A. Stops an interface from sending or receiving periodic dynamic updates.

B. Stops an interface from sending periodic dynamic updates but not from receiving updates.

C. Stops the router from receiving any dynamic updates.

D. Stops the router from sending any dynamic updates.

Answer & Explanation
Answer: Option B

Explanation:

The passive command, short for passive-interface, stops regular updates from being sent out an interface. However, the interface can still receive updates.

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CCNA ( Network Basic Question 13 )

Where is a hub specified in the OSI model?

A. Session layer

B. Physical layer

C. Data Link layer

D. Application layer

Answer & Explanation
Answer: Option B

Explanation:

Hubs regenerate electrical signals, which are specified at the Physical layer.

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CCNA ( Network Basic Question 12 )

Which command is used to determine if an IP access list is enabled on a particular interface?



A. show access-lists

B. show interface


C. show ip interface

D. show interface access-lists


Answer & Explanation
Answer: Option C

Explanation:

The show ip interface command will show you if any outbound or inbound interfaces have an access list set.

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CCNA ( Network Basic Question 11 )

Which protocol does DHCP use at the Transport layer?

A. IP

B. TCP

C. UDP

D. ARP

Answer & Explanation
Answer: Option C

Explanation:

User Datagram Protocol is a connection network service at the Transport layer, and DHCP uses this connectionless service.

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Network Basic Question 10( CCNA )

Which of the following commands will allow you to set your Telnet password on a Cisco router?

A. line telnet 0 4

B. line aux 0 4

C. line vty 0 4

D. line con 0

Answer & Explanation
Answer: Option C

Explanation:

The command line vty 0 4 places you in a prompt that will allow you to set or change your Telnet password.

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Network Basic Question 9

What protocol does PPP use to identify the Network layer protocol?

A. NCP

B. ISDN

C. HDLC


D. LCP






Answer & Explanation


Answer: Option A

Explanation:

Network Control Protocol is used to help identify the Network layer protocol used in the packet.

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