CompTIA Network+ Practice Exam 2 (72 Questions)

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  • 1/72 Questions

    You need to install a network printer, and you require the printer’s MAC address to finish the installation. Which of the following is a valid MAC address?

    • 192.168.2.13
    • 0x00007856
    • 00:04:e2:1c:7b:5a
    • 56g78:00h6:1415
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CompTIA Network+ Practice Exam 2 (72 Questions) - Quiz
About This Quiz

This CompTIA Network+ Practice Exam assesses key skills in network security, troubleshooting, and setup. It includes questions on packet sniffing, RAID configurations, and wireless security, making it essential for learners aiming to validate their expertise in network administration and security.

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  • 2. 

    You suspect that someone is capturing the data sent on your network. You want to capture data to ensure that it is encrypted and cannot be read by intruders. Which of the following network utilities can both intruders and administrators use to capture network traffic?

    • Port scanner

    • Packet filter

    • Data watcher

    • Packet sniffer

    Correct Answer
    A. Packet sniffer
    Explanation
    Both administrators and hackers use packet sniffers on networks to capture network data. They are either a hardware device or software and eavesdrop on network transmissions that are traveling throughout the network. The packet sniffer quietly captures data and saves it to be reviewed later. Answer A is incorrect because port scanners monitor traffic into and out of ports such as those connected to a switch. Answers B and C are not valid traffic-monitoring technologies.

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  • 3. 

    You have been called in to replace a faulty ST connector. Which of the following media types are you working with?

    • RG-58

    • RG-62

    • Single-mode fiber

    • SCSI

    Correct Answer
    A. Single-mode fiber
    Explanation
    ST connectors are a twist-type connector used with single-mode fiber. Answer A is incorrect because RG-58 (thin coax) uses BNC-type connectors. Answer B is incorrect because RG-62 (thick coax) uses vampire-type AUI connectors. Answer D is incorrect because SCSI cables use a variety of connector types, none of which include ST connectors.

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  • 4. 

    You are troubleshooting a 100BaseT network, and you suspect that the maximum cable length has been exceeded. What is the maximum length of a 100BaseT network segment?

    • 25 meters

    • 100 meters

    • 185 meters

    • 500 meters

    Correct Answer
    A. 100 meters
    Explanation
    100BaseT is an Ethernet network standard implemented using thin twisted-pair cable. The maximum length of a segment is 100 meters. When cable is run beyond 100 meters, repeaters can be used to regenerate the signal for longer transmission distances.

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  • 5. 

    You are troubleshooting a network connectivity error, and you need to issue a continuous ping command. Which of the following switches is used with ping to send a continuous ping message?

    • -p

    • -t

    • -c

    • -r

    Correct Answer
    A. -t
    Explanation
    The ping -t command issues a continuous stream of ping requests until it is interrupted. A regular ping sends four requests, but sometimes this is not enough to troubleshoot a connectivity issue. None of the other answers are valid switches for a continuous ping command.

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  • 6. 

    A number of users have called to report printing problems. Upon investigation, you trace the problem to a network printer connected to a server system. You arrive at the printer to find that it is connected online and appears to perform a test print without any problems. You check the network connectivity, and that seems to be okay as well. Which troubleshooting step would you perform next?

    • Examine the log files on the server to determine whether any printing-related events have occurred

    • Reboot the server that acts as the print server

    • Remove and reinstall the printer drivers

    • Change the network cable that connects the printer to the network

    Correct Answer
    A. Examine the log files on the server to determine whether any printing-related events have occurred
    Explanation
    Log files often record information about errors that can be vital to the troubleshooting process. Answer B is incorrect because rebooting the server is a last-resort troubleshooting step. Answer C is incorrect because although removing and reinstalling the printer drivers might be a valid step, it would not be the first choice of those listed. Changing the network cable might be a valid troubleshooting step, but because it has been verified that the network connectivity is working, this should not be necessary.

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  • 7. 

    Which of the following services provides name resolution services for FQDNs?

    • DNS

    • DHCP

    • WINS

    • ARP

    • NTP

    Correct Answer
    A. DNS
    Explanation
    The Domain Name System (DNS) resolves Fully Qualified Domain Names (FQDNs) to IP addresses. Answer B is incorrect because Dynamic Host Configuration Protocol (DHCP) provides automatic IP address assignment. Answer C is incorrect because the Windows Internet Naming Service (WINS) provides NetBIOS computer name to IP address resolution. Answer D is incorrect because Address Resolution Protocol (ARP) resolves IP addresses to MAC addresses. Answer E is incorrect because Network Time Protocol (NTP) facilitates the communication of time information between systems.

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  • 8. 

    Which of the following terms describes how long it takes routers to update changes in the network topology?

    • Poison reverse

    • Split horizon with poison reverse

    • Convergence

    • BGP

    Correct Answer
    A. Convergence
    Explanation
    Convergence is the term used to describe how long it takes routers to update changes to the network. Routing loops can occur on networks with slow convergence. Routing loops occur when the routing tables on the routers are slow to update, and a redundant communication cycle is created between routers. Answers A and B are strategies to prevent routing loops. Answer D is incorrect because BGP is a distance-vector protocol.

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  • 9. 

    A user on your network can send data packets within the local subnet but cannot send packets beyond the local subnet. Which of the following is likely the problem?

    • Invalid permissions

    • Incorrect gateway information

    • No DNS server is installed

    • No WINS server is installed

    Correct Answer
    A. Incorrect gateway information
    Explanation
    If the gateway information is not set correctly, the data packets cannot get beyond the local subnet. All the other options do not prevent the user from transmitting data to remote hosts.

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  • 10. 

    Under what circumstance would you change the default channel on an access point?

    • When channel overlap occurs between access points

    • To release and renew the SSID

    • To increase the WEP security settings

    • To decrease the WEP security settings

    Correct Answer
    A. When channel overlap occurs between access points
    Explanation
    Ordinarily the default channel used with a wireless device is adequate. However, it may be necessary to change the channel if overlap with another nearby access point occurs. The channel should be changed to another, nonoverlapping channel. Changing the channel would not impact the WEP security settings.

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  • 11. 

    Which of the following topology types offers the greatest amount of redundancy?

    • Star

    • Bus

    • Ring

    • Mesh

    Correct Answer
    A. Mesh
    Explanation
    In a mesh topology, each device is connected directly to every other device on the network. Such a structure requires that each device have at least two network connections. Answers A, B, and C do not offer the same level of redundancy as a mesh topology.

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  • 12. 

    Which type of cable should be used in a 100BaseT network?

    • RG-58

    • Category 4 UTP

    • Category 5 UTP

    • Multimode fiber

    Correct Answer
    A. Category 5 UTP
    Explanation
    100BaseT is implemented using a minimum of Category 5 UTP cable. Answer A is incorrect because RG-58 is a type of coaxial cable with a maximum speed of 10Mbps. Answer B is incorrect because Category 4 UTP cable is not intended for use on a 100BaseT network. Answer D is incorrect because multimode fiber is used in fiber-optic networks. The 100BaseT standard defines 100Mbps networking using UTP cable.

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  • 13. 

    You are working on a Linux system, and you suspect that there might be a problem with the TCP/IP configuration. Which of the following commands would you use to view the system’s network card configuration?

    • Config

    • Ipconfig

    • Winipcfg

    • Ifconfig

    Correct Answer
    A. Ifconfig
    Explanation
    On a Linux system, the ifconfig command shows the network card configuration. Answer A is incorrect because the config command shows the network configuration on a NetWare server. Answer B is incorrect because the ipconfig command shows the network configuration information on a Windows system. Answer C is incorrect because the winipcfg command shows the network configuration information on a certain Windows system, such as Windows 95/98.

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  • 14. 

    Which of the following authentication systems uses tickets as part of its authentication process?

    • HTTPS

    • POP3

    • Kerberos

    • SSL

    Correct Answer
    A. Kerberos
    Explanation
    The Kerberos authentication system uses tickets as part of the authentication process. HTTPS (answer A) is an implementation of SSL. It does not use tickets. POP3 (answer B) is an email retrieval protocol. SSL (answer D) does not use tickets.

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  • 15. 

    Your manager asks you to recommend a secure way to copy files between a server on your network and a remote server in another location. Which of the following solutions are you most likely to recommend?

    • TFTP

    • FTP

    • SFTP

    • IGMP

    Correct Answer
    A. SFTP
    Explanation
    Secure File Transfer Protocol (SFTP) allows you to securely copy files from one location to another. SFTP provides authentication and encryption capabilities to safeguard data. Answer A is incorrect because TFTP is a mechanism that provides file-transfer capabilities, but it does not provide security. Answer B is incorrect because FTP provides basic authentication mechanisms, but it does not provide encryption. Answer D is incorrect because IGMP is a protocol associated with multicast group communications. It is not a file transfer protocol.

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  • 16. 

    Your colleague decides to close all unused ports on the corporate firewall to further secure the network from intruders. The open ports are 25, 80, 110, and 53. Your colleague knows that ports 25 and 110 are required for email and that port 80 is used for nonsecure web browsing, so he decides to close port 53, because he doesn’t think it is necessary. Which network service is now unavailable?

    • Secure HTTP

    • FTP

    • Telnet

    • DNS

    Correct Answer
    A. DNS
    Explanation
    The DNS service uses port 53. If this port is accidentally blocked, the DNS service will be unavailable. Answer A is incorrect because secure HTTP uses port 443. Answer B is incorrect because FTP uses port 21. Answer C is incorrect because Telnet uses port 23.

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  • 17. 

    You have been hired to review the security of a company’s network. Upon investigation, you notice that a wireless AP has been installed in a wiring closet without the consent of the administrator. The AP is actively used by remote users to access resources on the company’s network. Which security problem does this represent?

    • Rogue protocol interception

    • Rogue AP

    • Network sniffing

    • Social engineering

    Correct Answer
    A. Rogue AP
    Explanation
    A rogue access point describes a situation in which a wireless access point has been placed on a network without the administrator’s knowledge. The result is that it is possible to remotely access the rogue access point, because it likely does not adhere to company security policies. Answers A and C are not valid security risk types. Answer D is a type of attack that involves tricking people into performing actions or divulging confidential information such as passwords or usernames.

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  • 18. 

    You have been called in to troubleshoot a small network. The network uses TCP/IP and statically assigned IP information. You add a new workstation to the network. It can connect to the local network but not to a server on a remote network. Which of the following is most likely the cause of the problem?

    • Incorrect IP address

    • Incorrect default gateway

    • The DHCP server is unavailable

    • Duplicate IP addresses are being used

    Correct Answer
    A. Incorrect default gateway
    Explanation
    To connect to systems on a remote network, the default gateway address has to be correctly assigned. If this address is entered manually, the number might have been entered incorrectly. Because the system can connect to the local network, the address is correctly assigned. Answer C is incorrect because IP addresses are statically assigned. Answer D is incorrect because duplicate addresses will prevent the system from being able to log on to the network.

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  • 19. 
    Which command produces the following output?  - ProProfs

    Which command produces the following output? 

    • Arp

    • Tracert

    • Ipconfig

    • Netinf

    Correct Answer
    A. Arp
    Explanation
    The output is from the arp -a command, which shows information related to IP address-to-MAC address resolutions. Answer B is incorrect because the tracert command displays the route a packet takes between two points. Answer C is incorrect because the ipconfig command displays a system’s network configuration. Answer D is incorrect because there is no such command as netinf.

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  • 20. 

    You are installing a 100BaseFX network, and you need to purchase connectors. Which of the following might you purchase? (choose two)

    • RJ-45

    • ST

    • BNC

    • SC

    Correct Answer(s)
    A. ST
    A. SC
    Explanation
    100BaseFX networks use fiber media, which can use either SC or ST connectors. Answer A is incorrect because RJ-45 connectors are used with UTP media. Answer C is incorrect because BNC connectors are used with thin coax media on 10Base2 networks.

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  • 21. 

    Placing a node on which of the following types of networks would require that you obtain an address from IANA?

    • Private network

    • Public network

    • Ethernet network

    • LAN

    Correct Answer
    A. Public network
    Explanation
    The Internet Assigned Numbers Authority (IANA) manages the address assignments for public networks such as the Internet. Answers A and D are incorrect because on a private network or LAN, you can use any internal IP addressing scheme that is compatible with your local network. Answer C is incorrect because an Ethernet network can be either private or public. It does not directly need an IANA assigned addressing scheme.

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  • 22. 

    What network device forwards packets only to an intended port?

    • Hub

    • Switch

    • Gateway

    • PPP

    Correct Answer
    A. Switch
    Explanation
    A switch is more efficient than a hub, because it forwards data only to intended ports. Answer A is incorrect because a hub directs data packets to all devices connected to the hub. Answers C and D are wrong because these are not network devices.

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  • 23. 

    When designing a network, you have been asked to select a cable that offers the most resistance to crosstalk. Which of the following are you likely to choose?

    • Multimode fiber-optic

    • Shielded twisted pair

    • UTP

    • Shielded mesh

    Correct Answer
    A. Multimode fiber-optic
    Explanation
    Unlike copper-based media, fiber-optic media is resistant to crosstalk, because it uses light transmissions. Answer B is incorrect because STP offers greater resistance to crosstalk than regular UTP but is not as resistant as fiber-optic cable. Answer C is incorrect because UTP cable is more susceptible to crosstalk than either STP or fiber-optic. Answer D is incorrect because shielded mesh is not a type of cable.

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  • 24. 

    Because of a recent security breach, you have been asked to design a security strategy that will allow data to travel encrypted through both the Internet and intranet. Which of the following protocols would you use?

    • IPSec

    • SST

    • CHAP

    • FTP

    Correct Answer
    A. IPSec
    Explanation
    IPSec is a nonproprietary security standard used to secure transmissions both on the internal network and when data is sent outside the local LAN. IPSec provides encryption and authentication services for data communications. Answer B is not a valid protocol. Answer C, CHAP, is a remote-access authentication protocol. Answer D is incorrect because FTP is a protocol used for large data transfers, typically from the Internet.

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  • 25. 

    Which of the following network protocols can recover from lost or corrupted packets in a network transmission?

    • L2TP

    • TCP

    • FTP

    • ARP

    Correct Answer
    A. TCP
    Explanation
    TCP is a connection-oriented protocol, so it can recover from failed transmissions. Answer A is incorrect because L2TP is used in remote-access connections. Answer C is incorrect because FTP is a connectionless file transfer protocol and cannot recover from lost packets. Answer D is incorrect because ARP is part of the TCP/IP protocol suite that resolves IP addresses to MAC addresses.

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  • 26. 

    Which of the following network types is easiest to add new nodes to?

    • Bus

    • Ring

    • Star

    • Mesh

    Correct Answer
    A. Star
    Explanation
    Each node on a star network uses its own cable, which makes it easy to add users without disrupting current ones. Adding a node to a bus network can sometimes involve breaking the segment, which makes it inaccessible to all other nodes on the network. This makes answer A incorrect. Answer B is incorrect because a true ring network model would require that the ring be broken to add a new device. Answer D is incorrect because a mesh topology requires that every device be connected to every other device on the network. Therefore, it is quite difficult to expand a mesh network.

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  • 27. 

    You come into work on Monday to find that the DHCP server failed over the weekend. Before you can fix it, client systems boot up and can communicate with each other. However, they cannot directly access the Internet or a remote network segment. Given that the DHCP server has failed, how can the systems communicate?

    • The DHCP service was recovered automatically using the Windows XP automatic restoration utility

    • The DHCP addressing information was obtained from the client cache

    • The client systems are assigned an IP address using APIPA

    • The client systems are using static IP addressing

    Correct Answer
    A. The client systems are assigned an IP address using APIPA
    Explanation
    If a Windows client system cannot locate and obtain an IP address from a DHCP server, it is assigned an address automatically using APIPA. After the address is assigned, all client stations with an APIPA address can communicate with each other. However, APIPA addresses are meant for internal communication and cannot be used to access remote networks. Answer A is incorrect because there is no such thing. Answer B is incorrect because the IP address is obtained from the DHCP server, not from the client cache. Answer D is incorrect because the client was not configured to use static IP addressing.

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  • 28. 

    On several occasions your wireless router has been compromised and intruders are logging onto it. Which of the following strategies could you use to increase the security of the wireless routers? (choose the two best answers)

    • Use SSL

    • Disable SSID broadcast

    • Use MAC filtering

    • Use wireless filtering

    Correct Answer(s)
    A. Disable SSID broadcast
    A. Use MAC filtering
    Explanation
    Administrators can take several security steps to help secure a wireless access point. This includes disabling the SSID broadcast. This makes it more difficult for intruders to get the name of your wireless network. MAC filtering is used to accept or deny client systems based on their MAC address. MAC filtering is an example of an access control list (ACL). Answer A is incorrect because SSL is a security protocol used to increase data transmission security. Answer D is incorrect because wireless filtering is not a valid security measure.

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  • 29. 

    Which term describes the process of using parts of the node address range of an IP address as the network ID?

    • Subnetting

    • Supernetting

    • Subnet masking

    • Super routing

    Correct Answer
    A. Subnetting
    Explanation
    The term subnetting refers to the process of using parts of the node address range for network addressing purposes. Supernetting (answer B) refers to the process of borrowing parts of the network address portion of an assigned address to be used for node addressing. Subnet masking (answer C) describes the process of applying a subnet mask to an address. Answer D is not a valid term.

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  • 30. 

    You are the administrator for a network that uses TCP/IP. You are using a single registered Class C network address. You want to continue to use it because many of your systems are accessed from outside sources, but you also want to create more networks so that you can manage traffic and security more effectively. Which of the following strategies would help you achieve this?

    • Implement a 127.x.x.x addressing system throughout the network

    • Use reverse proxy

    • Use subnetting

    • Use private addressing

    Correct Answer
    A. Use subnetting
    Explanation
    Subnetting allows you to create more than one network from a single network address by manipulating the subnet mask to create more network addresses. Answer A is incorrect because the 127.x.x.x address range is reserved for TCP/IP loopback functionality and cannot be used as an addressing scheme. Answer B is incorrect because reverse proxy is used when a proxy server protects another server (normally a web server), which responds to requests from users on the other side of the proxy server. Answer D is incorrect because private addressing might well solve the issues of security and traffic management, but without also using reverse proxy, systems on the internal network are unavailable to outside users.

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  • 31. 

    You have just purchased a new wireless access point that uses no WEP security by default. You change the security settings to use 128-bit encryption. How must the client systems be configured?

    • All client systems must be set to 128-bit encryption

    • The client system inherits security settings from the AP

    • WEP does not support 128-bit encryption

    • The client WEP settings have to be set to autodetect

    Correct Answer
    A. All client systems must be set to 128-bit encryption
    Explanation
    On a wireless connection between an access point and the client, each system must be configured to use the same settings, which includes the SSID, and security settings including WEP. In this question, both the client and the AP must be configured to use 128-bit encryption. Answer B is incorrect because the client does not inherit the information from the AP. Answer C is incorrect because WEP supports 128-bit encryption. Answer D is incorrect because WEP does not have an autodetect feature.

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  • 32. 

    While troubleshooting a DNS issue from a UNIX server, you suspect that the DNS record for one of your other servers is incorrect. Which of the following utilities are you most likely to use to troubleshoot this problem?

    • Ipconfig

    • Dig

    • Netstat

    • Nbtstat

    Correct Answer
    A. Dig
    Explanation
    The dig command is used on UNIX and Linux systems to perform manual name resolutions against a DNS server. This can be useful in troubleshooting DNS-related issues. The ipconfig, netstat, and nbtstat commands are all Windows-based commands, so they would not be used in this scenario.

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  • 33. 

    Which of the following best describes the function of asymmetric key encryption?

    • It uses both a private and public key to encrypt and decrypt messages

    • It uses two private keys to encrypt and decrypt messages

    • It uses a single key for both encryption and decryption

    • It uses three separate keys for both encryption and decryption

    Correct Answer
    A. It uses both a private and public key to encrypt and decrypt messages
    Explanation
    Asymmetric key encryption uses both a private and public key to encrypt and decrypt messages. The public key is used to encrypt a message or verify a signature, and the private key is used to decrypt the message or sign a document. In a symmetric key encryption strategy, a single key is used for both encryption and decryption. None of the other answers represents asymmetric key encryption.

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  • 34. 

    What is the maximum cable length of a 10BaseT network?

    • 185 meters

    • 500 meters

    • 100 meters

    • 50 meters

    Correct Answer
    A. 100 meters
    Explanation
    10BaseT networks use UTP media, which have a maximum distance of 100 meters. Answer A is incorrect because 185 meters is the distance limitation of thin coax media used on 10Base2 networks. Answer B is incorrect because 500 meters is the distance limitation of thick coaxial media used with 10Base5 networks. Answer D is incorrect because 50 meters is not a valid cable distance.

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  • 35. 

    Which of the following statements is true of IMAP?

    • IMAP leaves messages on the mail server so that they can be viewed and accessed from various locations

    • IMAP is used to send as well as receive email

    • IMAP can only be used to send mail

    • IMAP uses port 110

    Correct Answer
    A. IMAP leaves messages on the mail server so that they can be viewed and accessed from various locations
    Explanation
    Unlike POP3, IMAP does not directly download and then remove messages from the mail server. Instead, IMAP leaves the email on the server so that messages can be retrieved from various locations. Answers B and C are wrong because IMAP is used only to retrieve email. Answer D is incorrect because IMAP uses port 143. POP uses port 110.

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  • 36. 

    To increase wireless network security, you have decided to implement port-based security. Which of the following standards specifies port-based access control?

    • 802.11x

    • 802.1x

    • 802.11b

    • 802.1b

    Correct Answer
    A. 802.1x
    Explanation
    802.1x is an IEEE standard specifying port-based network access control. Port-based network access control uses the physical characteristics of a switched local area network (LAN) infrastructure to authenticate devices attached to a LAN port and to prevent access to that port in cases where the authentication process fails. Answer A is incorrect because 802.11x is not a security standard but sometimes is used to refer to all wireless network standards, such as 802.11b/g/a/n. Answer C, 802.11b, is an actual wireless standard specifying transmission speeds of 11Mbps.

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  • 37. 

    You are installing a wireless network solution that uses a feature known as MIMO. Which wireless networking standard are you using?

    • 802.11a

    • 802.11b

    • 802.11g

    • 802.11n

    Correct Answer
    A. 802.11n
    Explanation
    Multiple input and multiple output (MIMO) is the use of multiple antennas at both the transmitter and receiver to improve communication performance. MIMO is used by the 802.11n standard and takes advantage of multiplexing to increase the range and speed of wireless networking. Multiplexing is a technique that combines multiple signals for transmission over a single line or medium. MIMO enables the transmission of multiple data streams traveling on different antennas in the same channel at the same time. A receiver reconstructs the streams, which have multiple antennas. The wireless standards in answers A, B, and C do not use the MIMO technology.

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  • 38. 
    Which command produces the following output?  - ProProfs

    Which command produces the following output? 

    • Arp

    • Netstat

    • Nbtstat

    • Tracert

    Correct Answer
    A. Netstat
    Explanation
    The output shown is from the netstat command from a Windows-based system.

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  • 39. 

    Your manager asks you to implement a fault-tolerant disk solution on your server. You have two 30GB hard disks and two controllers, so you decide to implement RAID 1. After the installation, your manager asks you how much storage space is now available for storing data. What do you tell her?

    • 30 GB

    • 40 GB

    • 60 GB

    • 120 GB

    Correct Answer
    A. 30 GB
    Explanation
    In a RAID 1 scenario where two controllers are being used (disk duplexing), one disk carries an exact copy of the other. Therefore, the total volume of one disk (30GB in this case) is lost to redundancy.

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  • 40. 

    Which of the following IPv6 addressing types is associated with IPv4 automatic 169.254.0.0 addressing?

    • Link-local

    • Site-local

    • Global address

    • Unicast

    Correct Answer
    A. Link-local
    Explanation
    A link-local IPv6 address is automatically configured on all interfaces. This automatic configuration is equivalent to the 169.254.0.0 automatically assigned IPv4 addressing. The prefix used for a link-local address is fe80::.

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  • 41. 

    You are working with an IPv6 network, and you need to ping the local loopback address. You know that the loopback address for the IPv4 network is 127.0.0.1, and you need the equivalent for the IPv6 network. Which address should you use? (Choose two.)

    • 0:0:0:0:0:0:0:1

    • ::1

    • ::127

    • FE80::

    Correct Answer(s)
    A. 0:0:0:0:0:0:0:1
    A. ::1
    Explanation
    The IPv4 address (127.0.0.1) is reserved as the loopback address; IPv6 has the same reservation. IPv6 address 0:0:0:0:0:0:0:1 is reserved as the loopback address. The address also can be shown using the :: notation with the 0s removed, resulting in ::1. Answer C is incorrect because that is not the address for the loopback adapter. Answer D is the IPv6 address for the link-local address.

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  • 42. 

    You recently installed a DHCP server to replace static IP addressing. You configure all client systems to use DHCP and then reboot each system. After they are rebooted, they all have an IP address in the 169.254.0.0 range. Which of the following statements is true?

    • The DHCP server has been configured to assign addresses in the 169.254.0.0 IP range

    • The DHCP server must be rebooted

    • Client systems are unable to access the new DHCP server

    • Client systems are getting IP address information from the HOSTS file

    Correct Answer
    A. Client systems are unable to access the new DHCP server
    Explanation
    When a client system first boots up, it looks for a DHCP server. If the server cannot be found, Automatic Private IP Addressing (APIPA) automatically assigns IP addresses to the client systems. The addresses are not routable and cannot be used to access remote segments. The addresses assigned are in the 169.254.0.0 address range. All clients configured with valid APIPA address will be able to communicate with each other.

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  • 43. 

    Which of the following wireless technologies typically are used to create a wireless personal area network? (Choose two.)

    • Infrared

    • 802.11g

    • Bluetooth

    • 802.11c

    Correct Answer(s)
    A. Infrared
    A. Bluetooth
    Explanation
    Infrared and Bluetooth are short-range wireless technologies used to connect personal devices such as PDAs, printers, and other resources to a computer. These are called a personal area networks (PANs) because they are small networks designed for personal use. PANs are often seen in coffee shops, libraries, and other areas where users work remotely. The 802.11 wireless standards, including 802.11g, are used to create wireless LANs, which include more devices, users, and resources.

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  • 44. 

    Which of the following are considered disaster recovery measures? (choose two)

    • Backups

    • UPS

    • RAID5

    • Offsite data storage

    Correct Answer(s)
    A. Backups
    A. Offsite data storage
    Explanation
    Both backups and offsite data storage are considered disaster recovery measures. Answer B is incorrect because a UPS is considered a fault-tolerance measure, not a disaster recovery measure. Answer C is incorrect because RAID 5 is considered a fault-tolerance measure, not a disaster recovery measure.

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  • 45. 

    You have configured network clients to obtain IP addresses using APIPA. Which of the following IP ranges would be assigned to client systems?

    • 10.10.0.0 to 10.254.254.0

    • 169.168.0.0 to 169.168.255.255

    • 192.168.0.0 to 192.168.254.254

    • 169.254.0.1 to 169.254.255.254

    Correct Answer
    A. 169.254.0.1 to 169.254.255.254
    Explanation
    The Internet Assigned Numbers Authority (IANA) has reserved addresses 169.254.0.1 to 169.254.255.254 for Automatic Private IP Addressing. APIPA uses a Class B address with a subnet mask of 255.255.0.0. None of the other IP address ranges listed are associated with APIPA address ranges.

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  • 46. 

    You are working with a wireless network that is using channel 1 (2412 MHz). What RF range would be used if you switched to channel 3?

    • 2417

    • 2422

    • 2427

    • 2408

    Correct Answer
    A. 2422
    Explanation
    IEEE 802.11g/b wireless systems communicate with each other using radio frequency signals in the band between 2.4GHz and 2.5GHz. Neighboring channels are 5MHz apart. Therefore, channel 3 would use the 2422 RF (2412+5+5).

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  • 47. 

    You have been asked to implement a server clustering strategy. Which of the following are reasons to use server clustering? (choose two)

    • To increase data transmission security over the LAN

    • To increase data transmission security over the WAN

    • To increase server service fault tolerance

    • To reduce network downtime

    Correct Answer(s)
    A. To increase server service fault tolerance
    A. To reduce network downtime
    Explanation
    Server clustering is a strategy using a grouping of servers to provide fault tolerance and failover service solutions for a network. In a clustered configuration, servers constantly communicate with each other. If one fails, the other knows, and it takes over the functions of that server, including the services that the failed server delivered. This provides fault tolerance for network services. Because the network can function in the event of a failed server, network downtime is reduced. Server clustering is not used to create data transmission security.

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  • 48. 

    Which of the following is not a type of Digital Subscriber Line (DSL) technology?

    • VHDSL

    • RADSL

    • ADSL

    • XTDSL

    Correct Answer
    A. XTDSL
    Explanation
    XTDSL is not a recognized form of DSL. Answer A (VHDSL) and Answer B (RADSL) are recognized versions of DSL. Answer C (ADSL) is a recognized, and arguably the most popular, version of DSL.

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  • 49. 

    At which layer of the OSI model is flow control performed?

    • Network

    • Transport

    • Session

    • Data link

    Correct Answer
    A. Transport
    Explanation
    Flow control occurs at the transport layer of the OSI model. Flow control does not occur at the network, session, or data link layers.

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Quiz Review Timeline (Updated): Mar 21, 2023 +

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 23, 2010
    Quiz Created by
    Nevermore42

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