CISCO Certification Questions

Q:

If you want to have more than one Telnet session open at the same time, what keystroke combination would you use?

A) Tab+spacebar B) Ctrl+X, then 6
C) Ctrl+Shift+X, then 6 D) Ctrl+Shift+6, then X
 
Answer & Explanation Answer: D) Ctrl+Shift+6, then X

Explanation:

To keep open one or more Telnet sessions, use the Ctrl+Shift+6 and then X keystroke combination.

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Q:

As a Cisco technician, you need to know EIGRP protocol very well. Which of the following is true about EIGRP successor routes? (Choose two)

A. A successor route is used by EIGRP to forward traffic to a destination
B. Successor routes are stored in the neighbor table following the discovery process
C. Successor routes are flagged as "active" in the routing table
D. A successor route may be backed up by a feasible successor route

Answer

Answer : A  D


 


Explanation:


A and D are correct because successor route is the best and primary route to a remote network. A successor route is used by EIGRP to forward traffic to a destination and is stored in the routing table. Its backed up by a feasible successor route in case the primary route fails, that is stored in the topology table.


B is incorrect because neighbor table only contains a list of directly connected EIGRP routers that have an adjacency with this router, it doesn't contain successor routes.


C is incorrect because successor routes found in the routing table are not flagged as "active”

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Q:

If you wanted to deny all Telnet connections to only network 192.168.10.0, which command could you use?

A) access-list 100 deny tcp 192.168.10.0 255.255.255.0 eq telnet B) access-list 100 deny tcp 192.168.10.0 0.255.255.255 eq telnet
C) access - list 100 deny tcp any 192.168.10.0 0.0.0.255 eq 23 D) access - list 100 deny 192.168.10.0 0.0.0.255 any eq 23
 
Answer & Explanation Answer: C) access - list 100 deny tcp any 192.168.10.0 0.0.0.255 eq 23

Explanation:

The extended access list ranges are 100 - 199 and 2000 - 2699, so the access-list number of 100 is valid. Telnet uses TCP, so the protocol TCP is valid. Now you just need to look for the source and destination address. only the third option has the correct sequence of parameters. Option B may work, but the question specifically states "only" to network 192.168.10.0, and the wildcard in option B is too broad.

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Q:

How many non- overlapping channels are available with 802.11b?

A) 3 B) 12
C) 23 D) 40
 
Answer & Explanation Answer: A) 3

Explanation:

The IEEE 802.11b standard provides three non-overlapping channels.

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Q:

Which of the following is considered to be the inside hosts address after translation?

A) Inside local B) outside local
C) Inside global D) Outside global
 
Answer & Explanation Answer: C) Inside global

Explanation:

An inside global address is considered to be the IP address of the host on the private network after translation.

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Q:

Which of the following protocols uses both TCP and UDP?

A) FTP B) SMTP
C) Telnet D) DNS
 
Answer & Explanation Answer: D) DNS

Explanation:

DNS uses TCP for zone exchanges between servers and UDP when a client is trying to resolve a hostname to an IP address.

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Q:

A network administrator needs to configure a router with a distance-vector protocol that allows classless routing. Which of the following satisfies those requirements?

A) IGRP B) OSPF
C) RIPv1 D) EIGRP
 
Answer & Explanation Answer: D) EIGRP

Explanation:

In this question, we're calling EIGRP just plain old distance vector. EIGRP is an advanced distance-vector routing protocol, sometimes called a hybrid routing protocol because it uses the characteristics  of both distance-vector and link-state routing protocols.

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Q:

You need to configure a router for a Frame Relay connection to a non-Cisco router. Which of the following commands will prepare the WAN interface of the router for this connection?

A) Router (config-if) #encapsulation frame-relay q933a B) Router (config - if) #encapsulation frame-relay ansi
C) Router (config - if) #encapsulation frame-relay ietf D) Router (config - if) #encapsulation frame-relay cisco
 
Answer & Explanation Answer: C) Router (config - if) #encapsulation frame-relay ietf

Explanation:

If you have a Cisco router on one side of a Frame Relay network and a non-Cisco router on the otherside, you would need to use the Frame Relay encapsulation type of IETF. The default is Cisco encapsulation, which means that a Cisco router must be on both sides of the Frame Relay PVC.

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