單項(xiàng)選擇題You have a single ISDN BRI B channel. What is its maximum bandwidth capacity of this one channel?()

A. 16kb/s
B. 64kb/s
C. 128kb/s
D. 144kb/s
E. 192kb/s
F. 256kb/s


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3.單項(xiàng)選擇題You are preparing to create a point to point WAN by connecting a Cisco router with a Juniper router by way of their serial links. Which one of the following commands would you use?()

A. TK1(config-if)# encapsulation hdlc ansi
B. TK1(config-if)# encapsulation ppp
C. TK1(config-if)# encapsulation LAPD
D. TK1(config-if)# encapsulation frame-relay ietf
E. TK1(config)#encapsulation ppp

4.單項(xiàng)選擇題Which one of the WAN data-link protocols below is used for out-of-band signaling?()

A. HDLC
B. NCP
C. PAP
D. LAPD
E. LAPB
F. None of the above

5.多項(xiàng)選擇題Which of the following correctly describe characteristics of PPP?()

A. Encapsulates several different types of routing protocols.
B. Supports only IP.
C. Can be used over analog circuits.
D. Is proprietary to Cisco
E. Supports error correction.

6.多項(xiàng)選擇題What are some common layer 2 encapsulations for a WAN link?()

A. Ethernet
B. PPP
C. Token Ring
D. HDLC
E. Frame Relay
F. POTS

8.單項(xiàng)選擇題A router receives a packet on interface 172.16.45.66/26. The source IP of the packet is 172.16.45.127/26 and the destination is 172.16.46.191/26.How will the router handle the packet?()

A. The destination is a host on another subnet, so the router will not forward the packet.
B. The destination is a host on the same subnet, so the router will forward the packet.
C. The destination is a broadcast address, so the router will not forward the packet.
D. The destination is a network address, so the router will forward the packet.

9.單項(xiàng)選擇題Network equipment supporting the use of flow control mechanisms has been recently installed. What is the purpose of flow control in a data network?()

A. It ensures that data is retransmitted if an acknowledgment is not received.
B. It reassembles segments in the correct order on the destination device.
C. It provides a mechanism for the receiver to control the transmission speed.
D. It regulates the size of each datagram segment.
E. All of the above are functions of flow control

10.單項(xiàng)選擇題The command "ip route 192.168.24.64 255.255.255.192 192.168.8.2 100" was configured on a router named TK1. No routing protocols or other static routes are configured on the Corporate router yet.Based on this information, which statement is true about this command?()

A. This command sets a gateway of last resort for the TK1 router.
B. The number 100 indicates the number of hops to the destination network.
C. The interface with IP address 192.168.8.2 is on the TK1 router.
D. The command creates a static route for all IP traffic with the source address 192.168.24.64.
E. Packets destined for host 192.168.24.124 will be sent to 192.168.8.2.
F. None of the above

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Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?()

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How many usable sub network and usable hosts per subnet result in the network address 201.105.13.0 is sub netted with a mask of /26? ()

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Which statement describes the rule of split horizon?()

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What does a configuration Register Setting of 0x2105 indicate to the Router? ()

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Which Frame Relay feature is responsible for transmitting keepalives to ensure that the PVC does not shut down because of inactivity?()

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The network 172.12.0.0 needs to be divided into subnets where each subnet has the capacity of 458 IP addresses.What would be the correct subnet mask to accomplish this division keeping the number of subnets at the maximum? ()

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What is the subnetwork address for a host with IP address 201.100.5.68/28?()

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Which of the following statements regarding routed and routing protocols are true?()

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Which of the following contribute to congestion on an Ethernet network?()

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The following access list was applied outbound on he E0 interface connected to the 192.168.1.8/29 LAN:access-list 123 deny tcp 192.168.1.8 0.0.0.7 eq 20 anyaccess-list 123 deny tcp 192.168.1.9 0.0.0.7 eq 21 anyWhat effect will this access list have?()

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