chapter 16 final

which class of service priority value should be assigned to a video conference call ?

4

a web server in your network hosts the public website for your company. you want to make sure that a failure of the NIC in the server does not prevent the website from being accessible on the internet. which solution should you implement?

Ethernet bonding

You are a network administrator for your company. A user calls and tells you that you after stepping on the network cable In her office, that she can no longer access the network. You go to the office and see that one of the user's stiletto heels has broken ad exposed some of the wires in the cat 5 network cable. You Make another cable and attach it from the wall plate to the user's computer

Test the solution

which of the following components do switches use to optimizes network performance by performing switching operation in hardware rather than using the CPU and software?

an application- specific integrated circuit

1

background

0

best effort(default)

you organization uses a time-keeping application that only runs on windows 2000 and does not run on never OS versions.

configure VLAN membership so that the windows 2000 workstations are 9n their own VLAN.

You have a website that uses multiple servers for different types of transactions. For example, one server is responsible for static web content, while another is responsible for secure transactions. You would like to implement a devices to speed up access to your web content..... Which type of device should you choose?

content switch

A user reports that she can't connect to the internet. After some investigation, you find that the wireless router has bee misconfigured. you are responsible for managing and maintaining the wireless access point.

create an action plan

3

critical applications

Users report that the network is down. As a help desk technician, you investigate and determine that a specific router is configured so that a routing loop exists. what should you do next?

determine if escalation is needed

A user reports that she can't connect to a server on your network. You check the problem and find out that all users are having the same problem.

determine what has changed

A new assistant network administrator was recently hired by your organization to relieve some of your workload. You assigned the assistant network administrator to replace a defective patch cable that connected port 1 on your patch panel to one of your network switches. You noticed that it took him an unusually long time to complete this task. Once done, users almost immediately began to report that the network had gone down. Upon entering the server room, you see that the assistant administrator has configured your network rack as shown in the Exhibit. What should you do? (Choose two. Each response is a complete solution.)

enable STP on each switch remove the patch cable connecting the first switch to the third switch

You are the network administrator for your company. A frantic user calls you one morning exclaiming that nothing is working...

establish symptoms

2

excellent effort

A router periodically goes offline. Once it goes offline, you find that a simple reboot puts the router back online. After doing some research you find that the most likely cause of the problem is a bug in the router's software. A new patch is available from the manufacturer that is supposed to eliminate the problem. What should you do next?

identify possible effects of the solution

A user reports that he cant connect to a specific Web site. You go to the user's computer and reproduce the problem. What should you do next?

identify the affected areas of the network

A user is unable to connect to the network. You investigate the problem and determine that the network adapter is effective. You replace the network adapter and verify that it works.

identify the results and effects of the solution

what is the purpose od using ethernet bonding?

increases network performance provides a failover solution for network adapters

You company leases a very fast internet connection and pays for it based on usage. You have been asked by the company president to reduce internet line lease costs you want to reduce the amount of web pages that are downloaded over the leased connection, without decreasing performance.

install a proxy server

6

internetwork control

which of the following devices accepts incoming client requests and distributes those requests to specific servers?

load balancer

which type of switch does optimizes network performance by using by using ASIC to perform switching at wire speed ?

multilayer switch

router

multiple broadcast domain

layer 3 switch

multiple broadcast domains

You are in the process of implementing a network access protection infrastructure to increase your network's security. you are currently configuring the remediation network that non-compliant clients will connect in order to become complaint. The remediation network Needs to be isolated from the secure network.

network segmentation

computes lost/sent packet statistics for each hop in the route between two hosts

pathping

test connectivity between two network hosts by sending ipv4 icmp echo requests packets with out modifying the ttl parameter

ping

test connectivity between two network hosts bu ipv6 icmp echo requests packets with out modifying the til parameter

ping-6

802.11n wireless access point

single broadcast domain

Unmanaged Switch

single broadcast domain

bridge

single broadcast domain

hub

single broadcast domain

repeater

single broadcast domain

which of the following devices is used on a LAN and offers guaranteed bandwidth each port?

switch

which of the following statements about DSCP are true?

the DIFFSERV field is used to add precedence values classification occurs at layer 3

used on linux systems to identify the route between ipv6 hosts

tracerroute6

used on windows system to identify the route between two ipv4 hosts

tracert

4

video (<100ms latency)

5

voice (< 10 ms latency)