多选题Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? （）ACall management softwareBMedia Convergence Servers (MCSs)CVoice gatewaysDIP telephones

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多选题

Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? （）

Call management software

Media Convergence Servers (MCSs)

Voice gateways

IP telephones

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相似问题和答案

第1题：

Which two statements are true about AH?() (Choose two.)

A. AH provides data integrity.

B. AH is identified by IP protocol 50.

C. AH is identified by IP protocol 51.

D. AH cannot work in conjunction with ESP

参考答案：A, C

第2题：

Which two Internet Protocol (IP) telephony devices are best categorized as infrastructure components? ()

A.Call management software

B.Media Convergence Servers (MCSs)

C.Voice gateways

D.IP telephones

参考答案：B, C

第3题：

TCP/IP is a communication protocol, which provides many different networking services. The TCP/IP Internet protocol suite is formed from two standards: the TCP （Transmission Control Protocol） and the IP（Internet Protocol）.

（72） means it is on the transport layer.

A.ISO

B.IP

C.OSI

D.TCP

正确答案：D
TCP/IP通信协议，它提供了许多不同的网络服务。TCP/IP网络协议是从两个标准的形成：TCP（传输控制协议）和IP（互联网协议）。（72）意味着它是在传输层。A.ISOB.IPC.OSID.TCP

第4题：

Simple Network Management Protocol (SNMP) is an Internet Standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device（）. SNMP is a component of the Internet Protocol Suiteas defined by the Internet（）Task Force. SNMP operates in the（）layer of the Internet protocol suite. All SNMP messages are transported via User（请作答此空）Protocol. An SNMP-managed network consists of three key components: a) Managed devices, b) （）(i.e.，software which runs on managed devices), and c) Network management station (NMS) (i.e.， software which runs on the manager).

A.Datum
B.Datagram
C.DatA.Packet
D.DatA.Message

答案：B

解析：

简单英语阅读题。

第5题：

Open Shortes t Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF).Which two statements best describe the OSPF link - state routing pro tocol?（）

A. OSPF sends updates every 10 seconds

B. OSPF sends triggered updates when a network change occurs

C. When a link state is changed, the router that detected the change creates a link - state advertisement (LSA) and propagates it to all OSPF devices using the 224.0.0.6 multicast address

D. OSPF sends summaries of individual link- state entries every 30 minutes to ensure LSDB synchronization

参考答案：B, D

第6题：

A global manufacturer of automobile parts wants to implement specialized voice applications to increase productivity and reduce the cost of overseas toll calls. Which Cisco solution best matches this business need?（）

A.Digital subscriber line (DSL)

B.Optical network

C.Wireless local-area network (WLAN)

D.Internet Protocol (IP) telephony

参考答案：D

第7题：

Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）

A. supports VLSM

B. link - state routing protocol

C. operati on is similar to BGP

D. supports two routing levels within an autonomous system

参考答案：A, B, D

第8题：

Which two packet attributes contribute to the identification of a session? ()(Choose two.)

A. destination port

B. TTL

C. IP options

D. protocol number

参考答案：A, D

第9题：

The Internet is based on connectionless end-to-end packet service, which traditionally provided best-effort means of data （请作答此空）using the Transmission Control Protocol/Internet Protocol Suite. Although the （）design gives the Internet its flexibility and robustness, its packet dynamics also make it prone to congestion problems,especially at （）that connect networks of widely different bandwidths.The initial QoS function set was for internet hosts.One major problem with expensive wide-area（）links is the excessive overhead due to small Transmission Control Protocol packets created by applications such as telnet and rlogin. The Nagle （），which solves this issue,is now supported by all IP host implementations.

A.transformation
B.transportation
C.processing
D.progressing

答案：B

解析：

平时多积累专业词汇。

第10题：

A、Digital subscriber line (DSL)
B、Optical network
C、Wireless local-area network (WLAN)
D、Internet Protocol (IP) telephony

正确答案:D

Which two Internet Protocol (IP) telephony devices are best

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