Networking Plus Chapter Three

10 September 2022
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40 test answers

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question
A hexadecimal number is a number written in the base 16 number system.
answer
True
question
DNS follows a centralized database model, allowing for easier management of DNS records.
answer
False
question
ICANN is responsible for restrictions on use of the .com, .org, and .net TLDs
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False
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Each organization that provides host services on the public Internet is responsible for providing and maintaining DNS authoritative servers for public access.
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True
question
An IPv6 address consists of 128 bits that are written as 10 blocks of hexadecimal numbers separated by colons.
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False
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At the root level of the DNS hierarchical structure, 13 clusters of root servers hold information used to locate TLD servers.
answer
True
question
The 1024 - 65535 range of ports is also known as the "well-known" range.
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False
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UDP port 123 is utilized by the Network Time Protocol service.
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True
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When using IPv6, two or more nodes on the same link are said to be neighbors.
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True
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The FTP protocol utilizes UDP, while TFTP uses TCP for data transmission
answer
False
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At the Transport layer of the OSI, what is used to find and communicate with a particular application running on a host?
answer
Port numbers
question
With a FQDN of ftp1.dallas.mycompany.com, what part is the domain name?
answer
mycompany.com
question
How can you determine the manufacturer of a NIC card based on the MAC address?
answer
The first 24 bits, known as the Organizationally Unique Identifier, identify the manufacturer.
question
What command can you utilize to display TCP/IP configuration information for each network adapter installed?
answer
ipconfig /all
question
Which of the following IP addresses would be a loopback IP address?
answer
127.0.0.1
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What text editor can be used on Linux to view and edit the contents of a configuration file?
answer
Vim
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On a Linux-based system, what command can be used to display TCP/IP information associated with every interface on the system?
answer
ifconfig -a
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Which of the following IPv6 addresses represents a global unicast address?
answer
2000::/3
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Which of the following protocols is used as a signaling protocol for the initial connection between hosts, but does not participate in data transfer during the session?
answer
SIP
question
What is by far the most popular DNS server software available?
answer
BIND
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Your supervisor has asked you to configure a new prototype network with a dual stack configuration. What does this mean?
answer
Both IPv4 and IPv6 protocols will be used on the network.
question
What utility is used to verify that TCP/IP installed, bound to the NIC, configured correctly, and communicating with the network?
answer
Ping
question
You are troubleshooting a network issue on a client computer and discover that the network card has an IP address of 169.254.196.200. What does this mean?
answer
The computer is configured to use DHCP, but was unable to lease an address.
question
What part of a MAC address serves as the extension identifier, or device ID?
answer
The last 24 bits of the MAC address.
question
In the classful addressing scheme, what range of network addresses is considered a Class B?
answer
128.0.x.y to 191.255.x.y
question
How do routers create a broadcast domain boundary?
answer
They do not forward broadcast traffic.
question
Which of the following is NOT a range of IP addresses recommended for use in private networks?
answer
127.0.0.0 through 127.255.255.255
question
When using DHCP for IPv6 (i.e. DHCPv6), what port do clients receive responses on?
answer
Port 547
question
What type of IPv6 address is fe80::8cf1:2c42:ffde:da1c?
answer
Multicast address
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If a host's IPv6 address contains the network adapter's MAC address within the last 64 bits of the IPv6 address, what standard is being used?
answer
EUI-64
question
Encrypted control of remote computers using the RDP protocol is accomplished using what port number?
answer
TCP 3389
question
What statement regarding the Server Message Block protocol is accurate?
answer
It is used by Windows and UNIX-based operating systems to share files.
question
What is the ARPA domain suffix utilized for?
answer
It is used for reverse DNS queries, and holds PTR records.
question
In a DNS zone, what type of record holds the name-to-address mapping for IPv6 addresses?
answer
AAAA record
question
You are setting up a DNS zone and have been asked to create SPF and DKIM records. What type of DNS record will hold this information?
answer
TXT record
question
What does the MX record do in a forward DNS zone?
answer
It identifies the e-mail server to be used for e-mail traffic for the domain.
question
You are troubleshooting a DNS issue on a Linux system, and need to test the resolution of your domain mycompany.com MX record using Google's DNS server with the IP address of 8.8.8.8. What dig command will accomplish this?
answer
dig query 8.8.8.8 domain mycompany.com type mx
question
What command can be used to check a domain computer's time source from a Command Prompt window?
answer
w32tm /query /source
question
A Windows computer on your network is having issues resolving queries for a specific domain, but not other domains. Other computers on the same network resolve the name just fine. What command can you issue that might fix the problem?
answer
ipconfig /flushdns
question
In the DNS hierarchy, where is information about how to find the top-level domain servers held?
answer
On the DNS root servers.