单选题An administrator needs a network that can support up to 800 hosts on the same subnet. Which of the following is the MINIMUM subnet mask that should be used？（）A 255.0.0.0B 255.255.0.0C 255.255.252.0D 255.255.255.0

A network administrator has configured source NAT, translating to an address that is on a locally connected subnet.The administrator sees the translation working, but traffic does not appear to come back.What is causing the problem?（）

A. The host needs to open the telnet port.

B. The host needs a route for the translated address.

C. The administrator must use a proxy-arp policy for the translated address.

D. The administrator must use a security policy, which will allow communication between the zones.

The network administrator needs to address seven LANs. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block?（）

A.8

B.6

C.30

D.32

E.14

F.16

The Ezonexam network administrator wants to use a router named VE1 to segment the local network. What are some of the advantages of using VE1 to segment the network? (Choose two)

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

You are a network administrator and you need to implement a routing protocol onyour network that provides:* Scalability* VLSM support* Minimal overhead* Support for connecting networks using routers of multiple vendorsWhich of the following routing protocol would best serve your needs?（）

A. VTP

B. RIP version 1

C. EIGRP

D. OSPF

E. IGRP

F. CDP

A network administrator needs to configure a serial link between the main office and a remote location. The router at the remote office is a non-Cisco router.How should the network administrator configure the serial interface of the main office router to make the connection?（）

A.

B.

C.

D.

Because web servers are(31)and application independent, they can send or request data from legacy or external applications including databases. All replies, once converted into(32)mark-up language, can then be transmitted to a(33). Used in this way, Intranets can offer(34)desktop support costs, easy links with legacy applications and databases and, above all,(35)of use.

A．machine

B．IP

C．platform

D．network