Review Questions Network+ Module 3

Which of the following addresses can be identified as an APIPA address? A) 169.254.0.1 B) 127.0.0.1 C) 255.255.255.255 D) ping 8.8.8.8

A) 169.254.0.1 Any IP address starting with 169.254 is identified as an APIPA address.

Which IPv6 prefix can be routed on the Internet? A) 2000::/3 B) FE80::/10 C) ::1/126 D) FC00::/7

A) 2000::/3

Which port should be open so you can remote into the corporate office's Linux Server from a branch office? A) 22 B) 23 C) 1433 D) 3389

A) 22

What decimal number corresponds to the binary number 11111111? A) 255 B) 256 C) 127 D) 11,111,111

A) 255

What is the secure port for HTTPS? A) 443 B) 587 C) 80 D) 23

A) 443 HTTPS uses port 443 for secure implementation of HTTP over SSL for TLS

What type of device does a computer turn to when attempting to connect with a host with a known IP address on another network? A) Default gateway B) DNS server C) Root server D) DHCP server

A) Default gateway

The Mosiac Music School has hired Kirk to set up a SIP protocol for a collaborative multimedia conference session that will be limited to the selected students opting for music theory. Which of the following ports should he use in such a situation so that the required encryption can be provided? A) 993 B) 5061 C) 995 D) 5060

B) 5061 Port 5061 is used for the creating of encrypted connections for multimedia sessions.

Suppose you send data to the 11111111 11111111 11111111 11111111 IP address on an IPv4 network. To which device(a) are you transmitting? A) All the devices on the Internet B) All devices on your local network C) The one device that is configured with this IP address D) No devices

B) All device on your local network

What protocol does ping use? A) HTTP B) ICMP C) DHCP D) FTP

B) ICMP

Which of the following command-line tools is used to display current TCP/IP addressing and domain name information on a Windows computer? A) ip B) ipconfig C) ping D) dig

B) ipconfig

Which of the following is an optional server that receives queries from local clients but doesn't work to resolve the queries? A) Primary DNS server B) Secondary DNS server C) Forwarding DNS server D) Caching DNS server

C) Forwarding DNS server

Which type of DNS record identifies an email server? A) AAAA record B) CNAME record C) MX record D) PTR record

C) MX record

Your client has hired you to change the command-line tool from nslookup to dig since it provides more detailed domain information than nslookup. Which of the following commands will you use to install dig on the Window operating system? A) dig -x 74.125.21.102 B) dig google.com ANY C) apt-get install dnsutils D) dig google.com

C) apt-get install dnsutils

Which of these commands has no parameters in Windows? A) ping B) ipconfig C) hostname D) nslookup

C) hostname

Identify which of the following statements is Correct. A) A 32-bit IPv4 address is organized into four groups of 8 bits each. B) The approximate number of possible networks in class B IPv4 is 126. C) The first part of an IPv address identifies the host, and the last part identifies the network. D) IPv4 is categorized into three classes

A) A 32-bit IPv4 address is organized into four groups of 8 bits each.

Which DNS server offers the most current resolution to a DNS query? A) Primary DNS server B) Root DNS server C) Caching DNS server D) TLD DNS server

A) Primary DNS server

Joseph is the managing director of Ideakt Cellular World Pvt Ltd., and he wants you to create an IPv6 network that has one-to-one type of data transmission between his personal department and the company's administration office. Which of the following types of IPv6 addresses would you apply in such a situation? A) Unicast address B) Loopback address C) Multicast address D) Anycast address

A) Unicast address In unicasting, data flows from a single source node to a single destination node on the network, so it would be ideally suited in this case.

If you are connected to a network that uses DHCP, and you need to terminate your Windows workstation's DHCP lease, which command would you use? A) ipconfig /release B) ipconfig /renew C) ifconfig /release D) ifconfig /renew

A) ipconfig /release

Liam has just set up a network connection for JLS Tyre's administration and wants to ensure that the IP addresses are functioning correctly with the NIC. Liam just wants to cross-check that basic Internet connection is up and running for the corporation by visiting Google's servers. In such a situation, analyze which of the following addresses Liam should visit to ensure that the network connection has been successful. A) ping 8.8.8.8 B) ping 192.168.1.1 C) ping 92.10.11.200 D) ping -a 8.8.8.8

A) ping 8.8.8.8

JusDial Telecommunications has requested your help to set up a new hostname on a couple of devices. On inspection, you find out that the devices are operating under LINUX systems. Which of the following command lines would you apply to set up a new hostname for the required network devices? A) sudo hostname B) hostname -I C) hostname A D) hostname

A) sudo hostname This command line sets up a new hostname on a device, however elevated privileges and passwords are required to execute this command.

You are the DNS administrator and have been tasked to hold alternative names for a host that is a newly established start-up venturing into the business of ecommerce. The start-up wants its clients to be directed to the appropriate page whenever they request for alternative names. Which of the following resource records would you apply as a DNS administrator in such a case? A) PTR record B) CNAME record C) AAAA record D) MX record

B) CNAME record A CNAME record holds alternative names for a host so that when required it can direct the client to the appropriate page on the website.

Silicone Printers has raised a ticket claiming that it was unable to view websites from its workstations, because with every attempted access, the system displayed an error message that read "there is another device using the same IP address." What would you, as a network engineer, check for in such a scenario? A) DHCP scope exhaustion B) Duplicate IP address C) Incorrect subnet mask D) Incorrect gateway

B) Duplicate IP address

You have just brought online a new secondary DNS server and notice your network-monitoring software reports a significant increase in network traffic. Which two hosts on your computer are likely to be causing the increase traffic and why? A) The caching and primary DNS servers because the caching server is requesting zone transfer from the primary server B) The secondary and primary DNS server because the secondary server is requesting zone transfers from the primary server C) The root and primary DNS servers because the primary server is requesting zone transfers from the root server D) The web server and primary DNS server because the web server is requesting zone transfers from the primary DNS server

B) The secondary and primary DNS server because the secondary server is requesting zone transfers from the primary server.

Which part of a MAC address is unique to each manufacturer? A) The network identifier B) The OUI C) The device identifier D) The physical address

B. The OUI

What is the purpose of the TXT (text) DNS resource record? A) Identifies an email server and is used for email traffic B) Holds the name-to-address mapping for IPv6 addresses C) Holds any type of free-form text D) Indicates the authoritative name server for domain

C) Holds any type of free-form text

Which DNS record type is used to find an FDQN from a given IP address? A) A B) CNAME C) PTR D) MX

C) PTR

When your computer requests a DNS lookup, which DNS server holds the most reliable information for that DNS record? A) Caching DNS server B) Forwarding DNS server C) Primary DNS server D) Root DNS server

C) Primary DNS server

Which of the following ports are used by applications such as Telnet, FTP, and HTTP? A) Dynamic port B) Private ports C) Well-known ports D) Registered ports

C) Well-known ports

Which command displays the full list of available objects and commands? A) ip address show B) ip link show C) ip help D) ip link help

C) ip help

What Windows command outputs a computer's MAC address? A) ipconfig B) ping C) ipconfig /all D) oui-lookup

C) ipconfig /all

Which command disables a computer's connection to the network? A) sudo ip link set eth0 up B) sudo hostname testVM C) ipconfig /release D) ping localhost

C) ipconfig /release

Brent recently received funding for his fast-food chain in Michigan. As a result, he hires Angela to set up a top-level domain so that she can start an online delivery system through his web portal as well. He wants Angela to put a unique domain name so that his website appears a little different from the other competitors. Analyze which of the following top level domain names Angela should opt for under such requirements. A) .eu B) .com C) .mail D) .biz

D) .biz .biz is mostly used for business. In this situation, out of the given options, .biz seems to fit the requirements here as it is less in use than .com.

Your client has contacted you to examine a workstation that has been showing network fluctuations time and again. The client tells you that one of his employees might have spilled some hot water over the Ethernet ports. Which of the following addresses will you choose to check the functionality of the Ethernet card without worrying about corrupted hardware and to ensure that the workstation's TCP/IP services are running? A) ping 192.168.1.1 B) ping -a 8.8.8.8 C) ping -? D) ping 127.0.0.1

D) 127.0.0.1 This is the loopback address, it will determine whether the workstation's TCP/IP services are running.

When hosting a secure email server for access from the Internet, which port should be open on the corporate firewall? A) 25 B) 110 C) 443 D) 587

D) 587

Which of the following IPv4 addresses is a public IP address? A) 10.0.2.14 B) 172.16.156.254 C) 192.168.72.73 D) 64.233.177.189

D) 64.233.177.189

When your computer first IPv6 LAN, what is the prefix of the IPv6 address the computer first configures for itself? A) FE00::/8 B) ::1/128 C) 2000::/3 D) FE80::/64

D) FE80::/64

What numbering system do humans use to write MAC addresses? A) Decimal B) Binary C) Base-2 D) Hexadecimal

D) Hexadecimal

Katy, a senior technician, wants to document all the devices that are connected to the network of Ford Industries, which has a large complex network. She wants to ensure that all information in the network, including the hostnames, manufacturer names, operating systems, and IP addresses, are well-documented. Which of the following tools should she opt for to carry this out? A) dig B) ipconfig C) Nmap D) IP scanner

D) IP scanner

What problem will ping google.com check for that ping 8.8.8.8 will not? A) Default gateway configuration B) Incorrect DNS server C) DHCP scope exhaustion D) Name resolution issues

D) Name resolution issues

9) Which DNS record type is listed first in a zone file? A) A B) AAAA C) CNAME D) SOA

D) SOA

JHS Mediaworks has contacted you to troubleshoot some TCP/IP errors on some workstations within the organization. On inspection, you get to know that the workstations functioning on Windows are all stable and the ones running on UNIX and Linux systems are the ones that need troubleshooting. Which of the following command-line tools will you use in such a scenario to view and manage the TCP/IP settings? A) nslookup B) IP scanner C) hostname D) Ip

D) ip The ip utility is used on UNIX and Linux systems to view, modify, and manage TCP/IP