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 CISCO Certification Questions

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Q:

Two connected routers are configured only with RIP routing. What will be the result when a router receives a routing update that contains a higher-cost path to a network already in its routing table?

A) The updated information will be added to the existing routing table B) The update will be ignored and no further action will occur
C) The updated information will replace the existing routing table entry D) The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence
 
Answer & Explanation Answer: B) The update will be ignored and no further action will occur

Explanation:

When a routing update is received by a router, the router first checks the administrative distance (AD) and always chooses the route with the lowest AD. However, if two routes are received and they both have the same AD and differing metrics , then the router will choose the one route with the lowest metrics or , in RIP's case, hop count.

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Q:

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 192.168.10.0 network
B. On router r2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.10.20 address
C. On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.10.20
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

Answer : C

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Subject: CCNA

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Q:

A network administrator views the output from the show ip route command. A network that is advertised by both RIP and EIGRP appears in the routing table flagged as an EIGRP route. why is the RIP route to this network not used in the routing table?

A) EIGRP has a faster update timer B) EIGRP has a lower administrative distance
C) RIP has a higher metric for that route D) The RIP path has a routing loop
 
Answer & Explanation Answer: B) EIGRP has a lower administrative distance

Explanation:

RIP has an administrative distance (AD) of 120, while EIGRP has an administrative distance of 90, so the router will discard any route with a higher AD than 90 to that same network.

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Q:

which IOS command enables access to high-level commands?

A) su root B) admin 0
C) enable D) init
 
Answer & Explanation Answer: C) enable

Explanation:
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Q:

What is the maximum data rate for the 802.11g standard?

A) 6Mbps B) 11Mbps
C) 22Mbps D) 54Mbps
 
Answer & Explanation Answer: D) 54Mbps

Explanation:

The IEEE 802.11g standard provides a maximum data rate of up to 54Mbps.

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Q:

Which of the following is correct?

A) Full- duplex Ethernet uses one pair of wires B) Full- duplex Ethernet uses two pairs of wires
C) Half- duplex Ethernet uses two pairs of wires D) Full- duplex Ethernet uses three pairs of wires
 
Answer & Explanation Answer: B) Full- duplex Ethernet uses two pairs of wires

Explanation:
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Q:

What is the administrative distance of OSPF?

A) 90 B) 100
C) 110 D) 120
 
Answer & Explanation Answer: C) 110

Explanation:

The administrative distance (AD) is a very important parameter in a routing protocol. The lower the AD, the more trusted the route. If you have IGRP and OSPF running , by default IGRP routes would be placed in the routing table because IGRP has a lower AD of 100. OSPF has an AD of 110. RIPv1 and RIPv2 both have an AD of 120, and EIGRP is the lowest, at 90.

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1 2819
Q:

What command will change the hostname of a router?

A) router#host name new name B) router(config-router)#hostname new name
C) router>host name new name D) router(config)#hostname new name
 
Answer & Explanation Answer: D) router(config)#hostname new name

Explanation:

Explanation: To specify or modify the host name for the network server, use the hostname command in global configuration mode.

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