题目
A.Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive
B.Full-duplex Ethernet consists of a shared cable segment. Half-duplex Ethernet provides a point-to-point link
C.Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth
D.Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex ethernet uses a jam signal
E.None of the above
第1题
In the Ezonexam switched LAN environment, what does the IEEE 802.1Q standard describe?
A. VLAN pruning
B. A method of VLAN trunking
C. An approach to wireless LAN communication
D. The operation of VTP
E. The process for root bridge selection
F. None of the above
第2题
Which of the following are layer 1 devices that you can use? (Choose all that apply.)
A.A switch
B.A router
C.A network adapter card
D.A hub
E.A repeater
第3题
A.To prevent unauthorized hosts from getting access to the LAN
B.To limit the number of Layer 2 broadcasts on a particular switch port
C.To prevent unauthorized Telnet or SSH access to a switch port
D.To prevent the IP and MAC address of the switch and associated ports
E.None of the above
第4题
A.The number of broadcast domains will be decreased.
B.It will make the broadcasting of traffic between domains more efficient between segments.
C.It will increase the number of collisions.
D.It will prevent segment 1's broadcasts from getting to segment 2.
E.It will connect segment 1's broadcasts to segment 2.
第5题
A. During high traffic periods
B. In an improperly implemented redundant topology
C. After broken links are re-established
D. When upper-layer protocols require high reliability
E. When a dual ring topology is in use
F. None of the above
第6题
A. Physical
B. Session
C. Data link
D. Transport
E. Network
F. Application
G. Presentation
第7题
A.Allowing simultaneous frame. transmissions
B.Increasing the size of broadcast domains
C.Increasing the maximum length of UTP cabling between devices
D.Filtering frames based on MAC addresses
E.Decreasing the number of collision domains
第8题
A.They are used to find the best path through a network.
B.They allow the exchange of filtering tables.
C.They specify different implementations of the Spanning-Tree Protocol.
D.They allow the exchange of routing tables
E.They provide inter-switch VLAN communication.
第9题
A. A broadcast domain with too many hosts.
B. Full duplex operation.
C. Broadcast storms.
D. Multicasting.
E. Network Segmentation.
F. Low bandwidth.
第10题
A.All defined VLANs are allowed on the trunk by default.
B.Each VLAN, or VLAN range, that is specified with the switchport mode command.
C.Each VLAN, or VLAN range, that is specified with the vtp domain command.
D.Each VLAN, or VLAN range, that is specified with the vlan database command.
E.None of the above
第11题
A. Routers generally cost less than switches
B. Filtering can occur based on Layer 3 information
C. Broadcasts are not forwarded across the router
D. Broadcasts are eliminated
E. Adding a router to the network decreases latency
F. Routers can generally support more LAN ports than switches
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