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Networking Fundamentals > Lesson 10 > Flashcards

Lesson 10 Flashcards

1
Q

Domain

A

A LAN with a domain controller hosting Active Directory Domain Services (AD DS). AD DS includes user and computer accounts for all users and computers that are granted access on the LAN.

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2
Q

Domain Naming System (DNS)

A

A service that runs on a server to resolve host names. DNS servers are used on the Internet and on internal networks.

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3
Q

Host cache

A

An area of memory on any computer that stores previously resolved host names and their IP addresses. It’s also called the DNS resolver cache since many of the entries are created when DNS is queried to resolve a host name. You can view the host cache with ipconfig /displaydns and flush the cache with ipconfig /flushdns.

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4
Q

Host name

A

A user-friendly name for a computer or other network device. Host names are on the Internet and most internal networks. The primary name resolution method for host names is DNS.

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5
Q

Hosts file

A

A text file in the c:\windows\system32\drivers\etc folder by default. The hosts file maps the names of computers to IP addresses.

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6
Q

NetBIOS name

A

A user-friendly name for a computer or other device. NetBIOS names are used on internal networks but never on the Internet. The primary name resolution method for NetBIOS names is WINS.

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7
Q

Windows Internet Naming Service (WINS)

A

A service that runs on a server to resolve NetBIOS names. WINS servers are used on internal Microsoft networks.

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8
Q

True or false. The primary name resolution method for NetBIOS names is DNS.

A

False

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9
Q

Which of the following is a function of a WINS server on a network?

A

Converting NetBIOS names to IP addresses

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10
Q

How can you view the host cache (or DNS resolver cache)?

A

Enter ipconfig /displaydns at the command prompt

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11
Q

True or false. The Windows Internet Naming Service (WINS) operates on the Internet.

A

False

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12
Q

What is the type of name used for computers on the Internet?

A

Host name

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13
Q

Which of the following DNS resource records is used to specify that the domain name is an alias of another?

A

CNAME

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14
Q

What type of computer names are assigned to Microsoft systems on a Microsoft network? (Choose all that apply.)

A

Host names

NetBIOS names

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15
Q

Which of the following DNS records is used for translating host name to IPv6 address resolution?

A

AAAA

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16
Q

What command can you enter at the command prompt to remove DNS resolved entries from the host cache?

A

Enter ipconfig /flushdns at the command prompt.

17
Q

True or false. Any entries in the Windows hosts file automatically appears in the host cache.

A

True

18
Q

Match the DNS record types with their usages.

A

A: It resolves host names to IPv4 IP addresses.
PTR: It resolves IP addresses to host names.
SRV: It is required by Active Directory to locate servers running specific services.
AAAA: It resolves host names to IPv6 addresses.
MX: It is used for mail exchange servers.
NS: It identifies DNS name servers.

19
Q

Which of the following is used to resolve a fully-qualified domain name (FQDN) to an IP address?

A

DNS query

20
Q

Which of the following is a function of Windows Internet Names Service (WINS)?

A

To map the NetBIOS names to IP addresses

21
Q

You have been hired to design a TCP/IP-based network that will contain both Unix and Windows computers. You are planning a name resolution strategy. Which of the following services will best suit the requirements of the network?

A

DNS

22
Q

Which of the following is the first step for a host to resolve a fully qualified domain name (FQDN) on a network that has an authoritative Domain Name System (DNS) server?

A

Check the FQDN against the local host name.

23
Q

Users on a TCP/IP network are able to ping resources using IP addresses. However, they’re unable to connect to those resources through their host names. A malfunction or failure of which of the following servers may be the cause of the issue?

A

DNS

24
Q

Windows checks various components to resolve a host name into an IP address. Determine the sequence in which the various components are checked.

A 
First: Host Cache
Second: DNS
Third: NetBIOS name cache
Fourth: WINS server
Fifth: Broadcast
Sixth: Imhosts file
25
Q

You work as a Network Administrator for Blue Well Inc. The company’s network contains Windows-based clients and servers. The network is connected to the Internet through a slow dial-up connection. You decide to install a DNS server on the network. What effect will it have on the network?

A

The amount of DNS traffic on the Internet connection will decrease.
The time taken for name resolution will decrease.

26
Q

Which of the following DNS resource records identifies the primary DNS server for a DNS zone?

A

SOA

27
Q

Which of the following is a type of server that must be associated with a name server record?

A

DNS

Networking Fundamentals (21 decks)

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