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What is the purpose of a network

题目

What is the purpose of a network mask?（）

  • A、It is used in conjunction with the wildcard mask to determine the number of hosts on a network
  • B、It is used to define which parts of the IP address are allocated to host addresses and network prefixes
  • C、It is used to hide subnets from external networks by masking the subnets with NAT
  • D、It is used to differentiate a network as a classful network or a classless network
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相似问题和答案

第1题：

Network equipment supporting the use of flow control mechanisms has been recently installed. What is the purpose of flow control in a data network?()

A. It ensures that data is retransmitted if an acknowledgment is not received.

B. It reassembles segments in the correct order on the destination device.

C. It provides a mechanism for the receiver to control the transmission speed.

D. It regulates the size of each datagram segment.

E. All of the above are functions of flow control


参考答案：C

第2题：

The purpose of a network（ ）is to provide a shell around the network which will protect the system connected to the network from various threats.


A. firewall
B.switch
C. router
D. gateway

答案：A
解析：
网络防火墙的任务是提供一个网络保护壳，保护系统连接网络的时候不受到各种各种的威胁

第3题：

What is the purpose of the Spanning Tree Protocol (STP)?

A．To prevent routing loops

B．To create a default route

C．To provide multiple gateways for hosts

D．To maintain a loop-free Layer 2 network topology

E．To enhance the functions of SNMP


正确答案：D
解析：Explanation:
STP's main task is to stop network loops from occurring on your Layer 2 network (bridges or switches). It vigilantly monitors the network to find all links, making sure that no loops occur by shutting down any redundant ones. STP uses the spanning-tree algorithm (STA) to first create a topology database, then search out and destroy redundant links. With STP running, frames will only be forwarded on the premium, STP-picked links.

第4题：

What is the purpose of a network mask?（）

  • A、It is used in conjunction with the wildcard mask to determine the number of hosts on a network
  • B、It is used to define which parts of the IP address are allocated to host addresses and network prefixes
  • C、It is used to hide subnets from external networks by masking the subnets with NAT
  • D、It is used to differentiate a network as a classful network or a classless network

正确答案:B

第5题：

What is the purpose of Spanning Tree Protocol?（）

  • A、to prevent routing loops
  • B、to create a default route
  • C、to provide multiple gateways for hosts
  • D、to maintain a loop-free Layer 2 network topology
  • E、to enhance the functions of SNMP

正确答案:D

第6题：

You have just configured a static default route on router TK1. What is the purpose of a default route?()

A. It is a route to be used when the routing protocol fails.

B. It is a route configured by an ISP that sends traffic into a corporate network.

C. It is a route used when a packet is destined for a remote network that is not listed in the routing table.

D. It is a route manually configured for a specific remote network for which a routing protocol is not configured.

E. It is used to send traffic to a stub network.


参考答案：C

第7题：

You have configured the "config network webmode enable" command on a Cisco device.  What is the purpose of this command？ （）

  • A、To allow HTTP access to the WLAN controller
  • B、To allow SSH access to the CLI of the WLAN controller
  • C、To allow SSL access to the CLI of the WLAN controller
  • D、To allow HTTPS access to the WLAN controller
  • E、None of the other alternatives apply

正确答案:A

第8题：

The purpose of a network（ ）is to provide a shell around the network which will protect the system connected to the network from various threats.

A.firewall

B.switch

C.router

D.gateway


正确答案：A

第9题：

What is the purpose of a network mask?（）

  • A、It is used to identify the maximum hop count of a subnetwork
  • B、It is used to identify an IP address as either private or public
  • C、It is used to identify the network to which an IP address belongs
  • D、It is used to identify the total number of bits present in an IP address

正确答案:C

第10题：

What is the purpose of an administrative distance？


正确答案:An administrative distance is a rating of preference for a routing protocol or a static route. When a router learns of a destination via more than one routing protocol or static route， AD will be used to choose the route with the lowest value.

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