CCNA Advanced Interview Questions

This is a questions and answers-series of CCNA interview questions. For those who don’t know about CCNA, CCNA is network certification, short for Cisco Certified Network Associate Routing & Switching (CCNA) certification. Passing this certification, it validates the ability of candidates to install, configure, operate, and troubleshoot medium-size routed and switched networks.

CCNA Advanced Interview Questions & Answers

Q. Does a bridge divide a network into smaller segments?

Ans: Bridge is a simple network device that works in the data link layer. Basically, the bridge connects multiple LANs using similar protocols to form a single LAN.

Q. Utilizing RIP, what is the limit when it comes to the number of hops?

Ans: RIP stands for Routing Information Protocol. RIP helps the router to identify the reach of other routers and also provides information related to the distance of networks. The maximum number of hops allowed with RIP is 15. It simply means that the hop count of 0 indicates a network is directly connected to the router while 16 hops indicate the destination is unreachable as 15 is the limit.

Q. How do you configure a Cisco router to route IPX?

Ans: First you need to enable IPX routing. After enabling, RIP and SAP will also be enabled automatically.

#config t
(config)#ipx routing

Q. Why is UDP less favored when compared to TCP?

Ans: The main disadvantage of UDP over TCP is you can't rely on UDP protocol in terms of reliability. Once you use UDP for message transfer, there is no acknowledgment of transfer message while TCP assures the reach of the message to the destination.

Q. What are some standards supported by the Presentation layer?

Ans: I am listing some standards as mentioned below:

• SSL
• FTP
• SSH
• IMAP

Q. What does the show protocol display?

Ans: show protocol display list of configured protocols. This command displays the global and interface-specific status of any configured Level 3 protocol.

Q. How do you go to privileged mode?

Ans: You may switch to the privileged mode by just using the enable keyword:

>enable

Q. What is Bandwidth?

Ans: Bandwidth simply tells about what amount of information your network carries. The use of bandwidth command restricts traffic based on defined BW.

Q. Mention what is the size of an IP address.

Ans: IP addresses are 32-bit numbers that contain two primary parts: the network prefix and the host number.  IP addresses are further divided into three different classes: class A, class B, and class C.

00000000 xxxxxxxx xxxxxxxx xxxxxxxx (Class A)
00000000 00000000 xxxxxxxx xxxxxxxx (Class B)
00000000 00000000 00000000 xxxxxxxx (Class C)

Additional Questions

Q. Mention what is BOOTP?

Q. What are the things that can be accessed in a CISCO router’s identifying information?

Q. What causes a triggered update to reset the router hold-down timer?

Q. In configuring a router, what command must be used if you want to delete the configuration data that is stored in the NVRAM?

Q. What are the benefits of IPv6?

Q. Mention what is the difference between the switch, hub, and router?

Q. Mention what is the size of IP address?

Q. Mention what does data packets consist of?

Q. Mention what is DHCP?

Q. Mention what is BOOTP?

Q. Mention what is the matric of EIGRP protocol?

Q. Mention what does the clock rate do?