單項(xiàng)選擇題

A company is experiencing network delays. The network administrator discovers that a worker in a location far from the MDF has connected an old 10BASE-T switch with redundant links to the existing network.
How could this action be responsible for the impaired network performance?（）

A. Connecting a host to the old switch has created a broadcast storm.
B. The 10BASE-T switch forced the entire network to be reduced to 10 Mbps operation.
C. The old switch does not support VLANs, which has disabled the VLAN configuration of the entire the network.
D. The old switch does not support full-duplex operation, effectively forcing half-duplex operation throughout the network.
E. Spanning Tree Protocol has elected the old switch as the root bridge, creating inefficient data paths through the switched network.


您可能感興趣的試卷

你可能感興趣的試題

1.多項(xiàng)選擇題Which of the following services use TCP?（）

A.DHCP
B.SMTP
C.SNMP
D.FTP
E.HTTP
F.TFTP

2.多項(xiàng)選擇題Refer to the router topology shown in the graphic. Assuming that all routers are running OSPF, which statements correctly describe how the routers exchange routing information?（）

A. Denmark exchanges with Utah, Paris, and Berlin.
B. Utah exchanges only with Denmark.
C. Berlin exchanges with Denmark, Utah, and Paris.
D. Paris exchanges only with Denmark.
E. Denmark exchanges with only Paris and Utah.

3.多項(xiàng)選擇題Which of the following are characteristics of named access lists?（）

A. Individual statements in a named access list may be deleted.
B. They require a numbered range from 1000 to 1099.
C. When created, they must be specified as standard or extended.
D. They are created with the ip access-list command.
E. The entire access list must be deleted before editing.
F. They are applied with the ip name-group command.

4.單項(xiàng)選擇題A default Frame Relay WAN is classified as what type of physical network?（）

A. point-to-point
B. broadcast multi-access
C. nonbroadcast multi-access
D. nonbroadcast multipoint
E. broadcast point-to-multipoint

7.單項(xiàng)選擇題Why would an administrator change the value of the spanning-tree priority of a switch?（）

A. in order to optimize the path that frames take from source to destination
B. to increase the priority so a designated port will become a root port
C. to increase the BID, so the switch is more likely to become root bridge
D. in order to allow VLANs to be sent from one switch to another across a single link
E. to force a given switch to become an STP server

8.多項(xiàng)選擇題Which of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN?（）

A. designated ports.
B. duplex operating mode.
C. fast mode ports.
D. root bridge.
E. root ports.
F. BDPU priority.

9.單項(xiàng)選擇題What is the subnetwork number of a host with an IP address of 172.16.210.0/22?（）

A. 172.16.42.0
B. 172.16.107.0
C. 172.16.208.0
D. 172.16.252.0
E. 172.16.254.0

10.多項(xiàng)選擇題Which statements describe the routing protocol OSPF?（）

A. It supports VLSM.
B. It is used to route between autonomous systems.
C. It confines network instability to one area of the network.
D. It increases routing overhead on the network.
E. It allows extensive control of routing updates.
F. It is simpler to configure than RIP v2.