Which of the following devices is used to connect multiple devices to a network and does not stopbroadcast traffic?（）A、SwitchB、HubC、ModemD、Repeater

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第4题：

You are the network administrator tasked with designing a switching solution for the Company  network.  Which of the following statements describing trunk links are INCORRECT？（）

• A、 The trunk link belongs to a specific VLAN.
• B、 Multiple trunk links are used to connect multiple end user devices.
• C、 A trunk link only supports native VLAN.
• D、 Trunk links use 802.10 to identify a VLAN.
• E、 The native VLAN of the trunk link is the VLAN that the trunk uses for untagged packets.

正确答案:A,B,C,D

第5题：

Which of the following devices replicates and passes data to all devices connected to it?（）

• A、Switch
• B、Router
• C、Bridge
• D、Hub

正确答案:D

第6题：

Which of the following devices is used to connect a WAN to a LAN?（）

• A、Basic router
• B、Basic switch
• C、Bridge
• D、Repeater

正确答案:A

第7题：

Which of the following interfaces is used to connect analog devices to the Internet?（）

• A、POTS
• B、ATM
• C、VDSL
• D、SDSL

正确答案:A

第8题：

A user has a small network of four computers that they want to connect to a single cable modem. Which of the following devices would allow the user to do this？（）

• A、Four port switch
• B、Four port wireless router
• C、Four port WAP
• D、Four port hub

正确答案:B

第9题：

A network at a small business utilizes a star topology and is experiencing frequent collisionsamong data packets. Which of the following devices is MOST likely being used?（）

• A、Unmanaged switch
• B、Hardware firewall
• C、Hub
• D、Managed switch

正确答案:C

第10题：

Which of the following network protocols is used to ensure consistent time across network devices on the domain?（）

• A、NTP
• B、FTP
• C、RTP
• D、IGMP

正确答案:A

第11题：

Rewrite rules are used in which CoS scenario?（）

• A、When a single device is configured to provide differentiated services.
• B、When multiple devices in a network are configured to use CoS to provide differentiated services.
• C、When a device is used to connect to another autonomous system.
• D、When CoS is used to classifiy traffic as low priority.

正确答案:B

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第16题：

Which two statements are true regarding an Ethernet collision domain?（）

• A、If a switch is used, the collision domain is limited to each device and the switch
• B、If a hub is used, the collision domain is limited to each device and the hub
• C、If a hub is used, the collision domain includes all devices connected to the hub
• D、If a switch is used, the collision domain includes all devices connected to the switch

正确答案:A,C

第17题：

Which of the following devices would allow a technician using a packet sniffer to view all the dataon a network?（）

• A、GBIC
• B、Hub
• C、Bridge
• D、Modem

正确答案:B

第18题：

Which of the following network devices would MOST likely be installed on a network to helpreduce broadcast traffic and to allow individual virtual networks?（）

• A、Switch
• B、Repeater
• C、Hub
• D、WAP

正确答案:A

第19题：

Which of the following devices is used to move frames between a source and destination basedon a MAC address?（）

• A、Repeater
• B、Hub
• C、Router
• D、Switch

正确答案:D

第20题：

Which of the following security devices would MOST likely be used on a network to screen and prevent malicious traffic?（）

• A、IDS
• B、VPN
• C、NIPS
• D、HIDS

正确答案:C

第21题：

Which of the following devices should an administrator connect to a protocol analyzer in order tocollect all of the traffic on a LAN segment?（）

• A、Hub
• B、VLAN
• C、Router
• D、Server

正确答案:A

第22题：

On which of the following network devices would an administrator configure an ACL?（）

• A、Router
• B、Hub
• C、Repeater
• D、NIC

正确答案:A

第23题：