Question 1

A(n)____ circuit is one where the connection is severed,such as a cable that is inadvertently cut in two.
A)open
B)closed
C)short
D)long

Accepted Answer

An open circuit is one where there is a break or discontinuity in the connection, causing the flow of current to stop. In this context, if a cable is inadvertently cut in two, it would result in an open circuit.

Question 2

Which protocol can resolve the problem of incorrect manual configuration of IP addresses or subnet masks?
A)SNMP
B)PPTP
C)IPSec
D)DHCP

Accepted Answer

DHCP (Dynamic Host Configuration Protocol) can automatically assign IP addresses and subnet masks to network devices, eliminating the need for manual configuration and reducing the risk of errors.

Question 3

The ping utility can help you determine how fast the CPU is operating on the target computer.

Accepted Answer

The ping utility measures the round-trip time for messages sent from one computer to another, it is not related to CPU speed.

Question 4

Which of the following is a TCP/IP service that converts a computer or domain name to an IP address,or that converts an IP address to a computer or domain name.
A)RCP
B)Ipconfig
C)ARP
D)DNS

Accepted Answer

DNS (Domain Name System) is the TCP/IP service that converts a computer or domain name to an IP address, or that converts an IP address to a computer or domain name. It is used by web browsers and other applications to locate resources on the Internet or a private network by using domain names instead of IP addresses.  RCP (Remote Copy Protocol) is a protocol used for file transfer between computers, Ipconfig is a command-line utility for displaying network configuration information and ARP (Address Resolution Protocol) is used for resolving MAC addresses to IP addresses in a local network.

Question 5

Which protocol is used to determine whether or not a packet successfully reaches its destination?
A)UDP
B)ICMP
C)TCP
D)IP

Accepted Answer

ICMP (Internet Control Message Protocol) is used for error reporting and determining whether a packet successfully reaches its destination. It sends messages to routers or hosts to check the status of the network and provides feedback on issues that are preventing successful packet delivery. UDP (User Datagram Protocol) does not guarantee delivery of packets, TCP (Transmission Control Protocol) ensures reliable packet delivery but does not specifically report errors, and IP (Internet Protocol) is responsible for routing and addressing packets but does not confirm delivery.

Question 6

The SNMP management system (a computer running management software)sends and requests information from an SNMP ____.
A)agent
B)monitor
C)filter
D)protocol

Accepted Answer

The SNMP management system communicates with SNMP agents in devices in order to collect and manage information about the devices and their network performance. The other options (monitor, filter, protocol) are not directly involved in this communication process.

Question 7

Which of the following is a property of a file or folder that shows whether or not a file or folder has been backed up since it was last modified?
A)read-only attribute
B)archive attribute
C)modified attribute
D)differential attribute

Accepted Answer

The archive attribute is a property of a file or folder that shows whether or not it has been backed up since it was last modified. When a file is created or modified, the archive attribute is set to indicate that the file needs to be backed up. Once the file is backed up, the archive attribute is cleared. This helps to track which files have been backed up and which ones still need to be backed up.

Question 8

Which command is used on a Windows system to determine the number of hops designed into a network from one point to another?
A)ping
B)netstat
C)tracert
D)route

Accepted Answer

The tracert command (short for "trace route") is used to determine the number of hops between two points in a network. It shows the route that packets take from the source to the destination, along with the number of hops and the time it takes for each hop. Ping is used to test connectivity between two points, netstat is used to display network connections and statistics, and route is used to display and modify the routing table.

Question 9

The ____ utility is designed for archiving data to tapes,and includes file information,as well as the archived files,such as security information and dates when files were modified.
A)ifconfig
B)ping
C)tar
D)linkup

Accepted Answer

The utility designed for archiving data to tapes is tar. It is commonly used in Unix/Linux systems and includes file information, as well as the archived files, such as security information and dates when files were modified. ifconfig and ping are networking utilities, while linkup is not a recognized utility.

Question 10

A ____ is an indicator of a quantity of an object that can be measured in some unit,such as percent,bytes sent per second,or number of reset connections,depending on what is appropriate to the object.
A)flag
B)counter
C)marker
D)delimiter

Accepted Answer

A counter is a type of indicator that keeps track of the quantity of an object that can be measured in some unit. Flags, markers, and delimiters are not typically used to measure quantities.

Question 11

Which of the following is NOT a view you can use when monitoring objects with Performance Monitor?
A)histogram bar
B)line
C)spreadsheet
D)report

Accepted Answer

Performance Monitor does not have a "spreadsheet" view. It offers views such as histogram bar, line, and report for monitoring objects.

Question 12

If the length of a network segment is extended beyond IEEE specifications,there may be communication problems affecting all nodes on the segment.

Accepted Answer

When the length of a network segment is extended beyond IEEE specifications, the signal may become too weak to reach all nodes, causing communication problems. This affects all nodes on the segment because they are all sharing the same physical medium.

Question 13

A(n)____ backup backs up all files that are marked with an archive attribute (which shows the file needs to be backed up)and removes the archive attribute from each file after the backup.
A)daily
B)periodic
C)incremental
D)comprehensive

Accepted Answer

The described backup method is an incremental backup. It only backs up files that have been recently modified (and therefore have the archive attribute), reducing backup time and storage needs. After backup, the attribute is removed to mark that the file has been backed up.

Question 14

Which of the following should you use to check for opens or breaks in a copper cable by determining if the signal sent from one end reaches the other end of the cable?
A)OTDR
B)traceroute
C)continuity tester
D)voltmeter

Accepted Answer

A continuity tester is designed to check if a signal can pass through a copper cable without any interruption. It can detect if there are any open or break in the copper cable by determining if the signal sent from one end reaches the other end of the cable. An OTDR is an optical time-domain reflectometer which is used to troubleshoot and analyze fiber optic cables. Traceroute is a networking diagnostic tool that tracks the pathway packets take from one network to another. A voltmeter is used to measure the electrical potential difference between two points in a circuit.

Question 15

A server administrator might regularly use ____ with the -s option to monitor a server during busy and light traffic times to get an idea of the typical number of packets sent at those times.
A)netstat
B)ping
C)traceroute
D)dump

Accepted Answer

The netstat command is used by server administrators to monitor network connections and statistics. The -s option displays detailed statistics for all the protocols, including TCP, UDP, IP, and ICMP. With this option, the administrator can monitor network traffic and get an idea of the typical number of packets sent during busy and light traffic times. The ping command is used to test the connectivity of a network device, and the traceroute command is used to trace the path taken by packets through the network. The dump command is used to capture network traffic for analysis.

Question 16

With netstat,you can view the TCP and UDP ports in use.

Accepted Answer

Netstat is a command-line utility tool that helps us to view the active network connections (TCP and UDP) in our computer system. We can use this command to display the list of all active socket connections, their IP addresses, and port numbers. Therefore, we can conclude that with netstat, we can view the TCP and UDP ports in use.

Question 17

A(n)____ backup creates an image of all of the files on a disk volume in binary format.
A)differential
B)incremental
C)image
D)full

Accepted Answer

An image backup creates an exact copy of all the files on a disk volume in binary format, including the operating system, system settings, and applications. This type of backup is useful for quick system recovery in case of a disaster or hardware failure. Differential, incremental, and full backups do not create an image of the entire disk volume.

Question 18

A TDR is used to test fiber-optic cable for distance and strength.

Accepted Answer

A TDR (Time Domain Reflectometer) is used to test electrical cables, not fiber-optic cables. An OTDR (Optical Time Domain Reflectometer) is used for fiber-optic cables.

Question 19

On Windows 7 and Windows Server 2008/Server 2008 R2 the Network Connection Status dialog box can determine the SSID of a wireless network.

Accepted Answer

The Network Connection Status dialog box in Windows 7 and Windows Server 2008/Server 2008 R2 can determine the SSID of a wireless network.

Question 20

Which of the following should you use to test for bad splices and connector problems on fiber-optic cable?
A)multimeter
B)OTDR
C)continuity tester
D)ohm meter

Accepted Answer

A multimeter and ohm meter are not designed to test fiber-optic cable as they are intended for electrical circuits. A continuity tester can test the continuity of a fiber-optic cable, but it cannot identify specific problems like bad splices or connector issues. An Optical Time Domain Reflectometer (OTDR) can generate and analyze pulses of light to detect and locate issues like bad splices, connector problems, and breaks in the fiber optic cable. Therefore, the best choice for testing for bad splices and connector problems on fiber-optic cable is an OTDR.

Quiz 12: Maintaining and Troubleshooting Your Network

A(n) ____ circuit is one where the connection is severed,such as a cable that is inadvertently cut in two.

Which protocol can resolve the problem of incorrect manual configuration of IP addresses or subnet masks?

The ping utility can help you determine how fast the CPU is operating on the target computer.

Which of the following is a TCP/IP service that converts a computer or domain name to an IP address,or that converts an IP address to a computer or domain name.

Which protocol is used to determine whether or not a packet successfully reaches its destination?

The SNMP management system (a computer running management software) sends and requests information from an SNMP ____.

Which of the following is a property of a file or folder that shows whether or not a file or folder has been backed up since it was last modified?

Which command is used on a Windows system to determine the number of hops designed into a network from one point to another?

The ____ utility is designed for archiving data to tapes,and includes file information,as well as the archived files,such as security information and dates when files were modified.

A ____ is an indicator of a quantity of an object that can be measured in some unit,such as percent,bytes sent per second,or number of reset connections,depending on what is appropriate to the object.

Which of the following is NOT a view you can use when monitoring objects with Performance Monitor?

If the length of a network segment is extended beyond IEEE specifications,there may be communication problems affecting all nodes on the segment.

A(n) ____ backup backs up all files that are marked with an archive attribute (which shows the file needs to be backed up) and removes the archive attribute from each file after the backup.

Which of the following should you use to check for opens or breaks in a copper cable by determining if the signal sent from one end reaches the other end of the cable?

A server administrator might regularly use ____ with the -s option to monitor a server during busy and light traffic times to get an idea of the typical number of packets sent at those times.

With netstat,you can view the TCP and UDP ports in use.

A(n) ____ backup creates an image of all of the files on a disk volume in binary format.

A TDR is used to test fiber-optic cable for distance and strength.

On Windows 7 and Windows Server 2008/Server 2008 R2 the Network Connection Status dialog box can determine the SSID of a wireless network.

Which of the following should you use to test for bad splices and connector problems on fiber-optic cable?