多选题The LAN needs are expanding at the Testking corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use?（）AA swit

题目

多选题

The LAN needs are expanding at the Testking corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use?（）

A switch.

A router.

A network adapter card.

A hub.

A repeater.

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相似问题和答案

第1题：

The advertisement said that an expanding company wished to _____ a secretary at their head office.

A: explore

B: exploit

C: employ

D: accept

正确答案: C

第2题：

Mike, a technician, is replacing a wireless router on an existing small office home office (SOHO) network. The SSID, WPA and DHCP information has been correctly added. Which of the following must also be addressed?（）

A. The administrative password needs to be changed.

B. The TKIP option needs to be enabled.

C. The WEP key needs to be changed.

D. Wireless access points need to be added.

参考答案：A

第3题：

Better understanding of team work can make you a more effective employee and give you an extra ______ in your corporate office.

A edge ;

B badge ;

C age

参考答案:A

第4题：

A. A switch.

B. A router.

C. A network adapter card.

D. A hub.

E. A repeater.

参考答案：D, E

第5题：

You are the network administrator for the Beijing office of TestKing. A branch

office is located in Cairo. The DNS servers in both locations run Windows Server

2003.

The network uses two DNS namespaces internally. They are named

publishing.testking.com and testking.com. The locations of the primary name

servers are shown in the following table.

The Beijing office contains some servers that are registered in the testking.com zone

and other that are registered in the publishing.testking.com zone. All computers in

the Beijing office are configured to use the local DNS server as their preferred DNS

server. The two offices are connected only by using a VPN through the Internet.

Various network problems occasionally result in loss of connectivity between the

two offices.

Firewalls prevent the DNS servers in both offices from receiving queries from the

Internet.

You need to configure the DNS server in the Beijing office to allow successful

resolution of all queries from the Beijing office for names in the

publishing.testking.com namespace, even when the VPN link between the Beijing

and Cairo offices fails.

What should you configure on the DNS server in the Beijing office?（）

参考答案：B

第6题：

The LAN needs are expanding at the Ezonexam corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the Ezonexam network.

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

正确答案：DE
解析：Explanation:
A hub simply repeats the electrical signal and makes no attempt to interpret the electrical signal (layer 1) as a LAN frame. (Layer 2). So, a hub actually performs OSI layer 1 functions, repeating an electrical signal, whereas a switch performs OSI layer 2 functions, actually interpreting Ethernet header information, particularly addresses, to make forwarding decisions. Hubs can be used to increase the number of stations that can be supported on a LAN.

Because the repeater does not interpret what the bits mean, but does examine and generate electrical signals, a repeater is considered to operate at Layer 1. Repeaters can be used to physically extend the LAN to greater distances.

第7题：

A single office with five computers and a server is an example of which of the following?()

A.PAN

B.WAN

C.SAN

D.LAN

参考答案：D

第8题：

An industrial corporate can meet its financial needs by seeking funds from the capital market.

A．Right

B．Wrong

C．Doesn't say

正确答案：A
解析：结合第一、二句可知资本市场为工商企业、政府、地方政府提供中长期融资，进一步推导得出工商业企业的融资需求可以通过资本市场满足。

第9题：

TestKing.com has a large corporate network that uses multiple routing protocols.Hosts in a portion of the network that uses EIGRP have become unreachable.Which router command will allow you, the network technician, to view the status of these routes?（）

A. TestKing# show eigrp entries

B. TestKing# show protocols

C. TestKing# debug eigrp routes

D. TestKing# show ip route eigrp

E. TestKing# show route eigrp

参考答案：D

第10题：

For security reasons, the network administrator needs to prevent pings into the corporate networks from hosts outside the internetwork. Which protocol should be blocked with access control lists()。

A.IP

B.ICMP

C.TCP

D.UDP

参考答案：B

The LAN needs are expanding at the Testking corporate office

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