Self-Assessment Quiz

Self-Assessment Quiz
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1	Which of the following are needed for e-mail clients to find their e-mail servers, FTP clients to find their file servers, and Web browsers to find Web servers?
		A)	DHCP servers
		B)	DNS servers
		C)	E-mail servers
		D)	WINS servers


2	What do DNS servers use to help resolve IP addresses to DNS names?
		A)	Authentication
		B)	Authorization
		C)	Backward lookup zones
		D)	Reverse lookup zones


3	What do DNS servers use to help resolve DNS names to IP addresses?
		A)	Accounting
		B)	Administration
		C)	Backward lookup zones
		D)	Forward lookup zones


4	What type of DNS servers do not have any forward lookup zones and will resolve names of systems on the Internet for a network but are not responsible for telling other DNS servers the names of any clients?
		A)	Cache-only servers
		B)	Primary servers
		C)	Secondary servers
		D)	WINS servers


5	What command gives you the IP address and the name of your system’s default DNS server?
		A)	nbtstat
		B)	nslookup
		C)	ping
		D)	winword


6	What file can be replaced when a network has a WINS server?
		A)	HOSTS
		B)	LMHOSTS
		C)	SAM
		D)	WINS


7	What file can be replaced when a network has a DNS server?
		A)	HOSTS
		B)	LMHOSTS
		C)	SAM
		D)	WINS


8	What does adding a WINS proxy agent enable you to accomplish on your network?
		A)	Cross a hub
		B)	Cross a server
		C)	Cross a switch
		D)	Cross a router


9	Folders with subfolders on a system, like domain names with subdomains, are said to have a structure resembling what?
		A)	Branch
		B)	Forest
		C)	Root
		D)	Tree


10	Which of the following commands clears the local cache of DNS entries?
		A)	ipconfig /clear
		B)	ipconfig /cls
		C)	ipconfig /flushdns
		D)	ipconfig /renew


11	Which variation of the nbtstat command checks the current NetBIOS name cache?
		A)	nbtstat
		B)	nbtstat –c
		C)	nbtstat /checkupgradeonly
		D)	nbtstat /status


12	Which of these terms are frequently used interchangeably?
		A)	Domain
		B)	Folder
		C)	Subdomain
		D)	Zone
		E)	Answers A and C


13	Which of the following are valid DNS record entry types?
		A)	A
		B)	M
		C)	NS
		D)	SOA
		E)	Answers A, C, and D


14	Which of the following is an example of a toplevel domain?
		A)	.com
		B)	totalsem.com
		C)	support.totalsem.com
		D)	houston.support.totalsem.com


15	How do authoritative DNS servers and cacheonly DNS servers differ?
		A)	Authoritative DNS servers contain forward lookup zones whereas cache-only DNS servers contain only reverse lookup zones.
		B)	Authoritative DNS servers store IP addresses and FQDNs of systems for a particular domain or domains whereas cache-only DNS servers do not store any FQDNs because they are only used to talk to other DNS servers to resolve IP addresses.
		C)	Authoritative DNS servers service requests for top-level domains whereas cache-only DNS servers service requests for down-level domains.
		D)	Authoritative DNS servers are found only in Windows Active Directory networks whereas cache-only DNS servers are found universally throughout the Internet.

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