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Q25. What distance is supported using CAT-5 cabling for 10/100/1000 TX? 

A. 100 m. 

B. 500 m. 

C. 1 Km. 

D. 10 Km. 

Answer: A 


Q26. Which of the following protocols belongs to the OSI suite of protocols? (Choose 2) 

A. OSPF 

B. BGP 

C. X.500 

D. IS-IS 

E. Ethernet 

Answer: C,D 


Q27. Which Ethernet frame field does the receiver use to verify the integrity of the received bits? 

A. Destination address 

B. Frame check sequence 

C. Preamble 

D. Length field 

Answer: B 


Q28. What happens immediately after an Ethernet switch receives an Ethernet frame? 

A. It records the destination MAC address and the interface on which it arrived. 

B. It records the source MAC address and the interface on which it arrived. 

C. It floods the frame out of all its interfaces except the interface on which the frame arrived. 

D. It transmits the frame out of the appropriate interface. 

Answer: B 


Q29. Which protocol is used by ping to verify IP network reachability? A. DCHP 

B. ICMP 

C. ARP 

D. NAT 

Answer: B 


Q30. Which of the following describes a static default route? 

A. A routing entry, included in the RIB by default, that forwards packets with an unknown destination to the CPM for inspection. 

B. A manual entry used when the destination address of a network is not specifically listed in the routing table. 

C. A manual entry that matches a specific /32 host address using the least cost to the destination. 

D. A default entry in the FIB used when forwarding multicast and broadcast packets. 

Answer: B 


Q31. What metric does a link state protocol use to choose the best path to a destination network? 

A. Link bandwidth. 

B. Round trip time. 

C. Hop count. 

D. Route preference. 

Answer: A 


Q32. Which of the following statements regarding TCP is TRUE? 

A. Sequence numbers are used to ensure that the data received is offered to the application in the correct order. 

B. The SYN flag is used to identify congestion in the network. 

C. The NACK flag is set on confirmation segments to acknowledge FCS errors. 

D. The window size is transmitted in all TCP segments to communicate MTU limitations of lower layer protocols to upper layer applications. 

Answer: A