Chapter 9 - Network Naming Flashcards
The _______ command is used to establish connectivity.
ping
The ________ protocol originally ran on top of NetBT, but today runs by itself and uses port 445.
Server message block (SMB)
The term ______ refers to networks that use DNS belonging to the same DNS system.
DNS tree
A helpful command that displays TCP/IP naming information is ______.
ipconfig
A DNS forward lookup zone uses a(n) ________ for individual host records.
A Record
To connect to systems on the internet using domain names, your network needs the name of at least one __________.
DNS Root server
The _____ gets precedence over querying a DNS server.
Host file
You can use the diagnostic utility called __________ to trace the progress of an ICMP packet between your system and a remote computer.
tracert
To avoid having to re-resolve an FQDN that it has already checked, a Windows DNS server keeps a list of IP addresses it has already resolved, called __________.
cached lookups
The single DNS server that has a list of all the host names on the domain and their corresponding IP addresses is the __________.
authoritative DNS server
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
DNS servers
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
Reverse lookup zones
What do DNS servers use to help resolve FQDNs to IP addresses?
A. Accounting
B. Administration
C. Backward lookup zones
D. Forward lookup zones
Forward lookup zones
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
Cache-inly servers
Running 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
nslookup
What file can you modify to resolve a name that takes effect regardless of the DNS server records?
A. hosts
B. SYSLOG
C. SAM
D. WIN
hosts
Which of the following ports is used by Windows to support pre-DNS naming protocols?
A. TCP port 443
B. TCP port 138
C. UDP port 445
D. TCP port 137
TCP port 137
What does adding a caching-only DNS server accomplish on your network?
A. Provides a backup DNS server
B. Allows your hosts to broadcast DNS
C. Speeds up DNS resolution
D. Replaces your DHCP server
Speeds up DNS resolution
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
Root
Running which of the following commands clears the local cache of DNS entries?
A. ipconfig /clear
B. ipconfig /cls
C. ipconfig /flushdns
D. ipconfig /renew
ipconfig /flushdns
What port does DNS use?
A. 53
B. 137
C. 138
D. 445
53
Which of these terms are frequently used interchangeably? (Select two.)
A. Domain
B. Folder
C. Subdomain
D. Zone
Domain & subdomain
Which of the following are valid DNS record entry types? (Select three.)
A. A
B. M
C. NS
D. SOA
A, NS, & SOA
Which of the following is an example of a top-level domain?
A. .com
B. totalsem.com
C. support.totalsem.com
D. houston.support.totalsem.com
.com
How do authoritative DNS servers and cache-only 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 static 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.
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 static FQDNs because they are only used to talk to other DNS servers to resolve IP addresses.
