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


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1.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.

2.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

4.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.

5.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

6.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

7.單項(xiàng)選擇題A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?()

A. Data, Frame, Packet, Segment, Bit
B. Data, Frame, Segment, Packet, Bit
C. Data, Packet, Frame, Segment, Bit
D. Data, Packet, Segment, Frame, Bit
E. Data, Segment, Frame, Packet, Bit
F. Data, Segment, Packet, Frame, Bit

8.單項(xiàng)選擇題What term is used to describe the process where one frame is placed into a different type of frame?()

A. Framing
B. De-encapsulation
C. Encapsulation
D. De-framing
E. None of the above

9.多項(xiàng)選擇題Regarding PAR (Positive Acknowledgement and Re-transmission), which of the answer choices below are correct?()

A. The source device will only retransmit lost packets on the request of the destination device.
B. The source device starts a timer when it sends a segment and retransmits if an acknowledgment is not received before the timer expires.
C. The destination device acknowledges receipt of a segment by sending a packet with a new sequence number and the ACK bit sent.
D. The destination device acknowledges receipt of a segment by sending a packet that indicates the next sequence number it expects.
E. If the destination device does not receive a segment, all segments are retransmitted.
F. The source device keeps a record of all segments sent and expects and acknowledgment of each.

10.單項(xiàng)選擇題Error detection schemes check errors in the data packets by reading which field frame IDs?()

A.MTU
B.PDU
C.FCS
D.Flag
E.MAC
F.BRI

最新試題

Which characteristics are representative of a link-state routing protocol?()

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All WAN links is side the TestKing.com network use PPP with for authentication security. Which command will display the CHAP authentication process as it occurs between two routers in the network?()

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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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Which of the following if addresses can be assigned to host devices?()

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A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached?()

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Which command is used to display the placement and direction of an IP access control list on a router?()

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

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A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? ()

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