XXI Test 0101: Success Questions
1. What is DHCP used for?
A. Share route information between routers
B. Display all statically assigned IP addresses in use
C. Resolve host names to IP addresses
D. Dynamically assign IP addresses as needed on a network
E. Get DNS, default route, and subnet mask information
2. What is the typical default lease life of a dynamically assigned IP address?
B. For as long as the host is connected to the network
C. 72 hours
D. 36 hours
E. 24 hours
3. What name resolution protocol is most commonly used in large environments including the Internet?
4. What is the order in which a server named email@example.com would be located in a typical DNS request?
A. Root --> Cartoon Servers --> Characters
B. Root --> COM Servers --> Characters --> rocky server
C. Root --> COM Servers --> cartoon Servers --> bullwinkle Servers --> rocky Server
D. rocky Server --> bullwinkle server --> cartoon server --> com servers
E. rocky.bullwinkle Server --> cartoon server --> com servers
5. What are the commonly used port numbers known as?
A. Basic access ports
B. Well known ports
C. Host sockets
D. Communication links
E. TCP transports
6. What is the function of the FTP protocol?
A. Send files between computers
B. Connects file servers on the World Wide Web
C. Holds file transmitted POP3 mail
D. Allows password free file transfers
E. Network management of devices
7. What is the basic message handling method of the POP3 protocol?
B. Store and forward
D. Dial-up on demand
8. What text-based utility could you use to access a router or a UNIX server?
9. When a packet's destination is unknown, what method is deployed to forward the packet to another network?
C. Default Route (Gateway)
D. DNS Server
E. WINS Server
10. The primary use of DNS is to?
A. Resolve NetBIOS addresses
B. Resolve NetBEUI addresses
C. Resolve WINS addresses
D. Resolve a DNS name to a TCP/IP address
E. All choices are correct
11. DNS is responsible for:
A. Resolving NetBIOS names
B. Resolving IP addresses
C. Updating OSPF routes
D. Backing up a WINS database
E. All choices are correct
12. The IP number 127.0.0.1 is usually assigned to which of the following?
C. All hosts as a local address
D. A computer running NetBEUI so it may convert the protocol to IP
E. All choices apply
13. A UNIX server on the Internet is configured to host a website and an FTP site. How will the server know which service the incoming packets are intended for?
A. Protocol ID
B. Port number
C. Host Header
D. TCP address
E. ARP announce
14. You can access your Web server by its IP address, but not by its host name. What could be the problem?
A. The WINS server is not configured correctly or is not present
B. The LMHOSTS file is not configured correctly or is not present
C. The DNS server is not configured correctly or is not present
D. Windows Explorer is not configured correctly
E. Microsoft Internet Explorer is not configured correctly
15. What does the IP protocol use for host name resolution?
16. Draw a line from each Protocol to the Port that it defaults to:
Protocol Default Port
TELNET Port 21
POP3 Port 23
HTTP Port 25
SMTP Port 80
FTP Port 110
17. Your company is having trouble sending e-mail. You suspect the SMTP server is the culprit. To confirm your suspicions you decide to:
A. Ping the router
B. Use Telnet set to port 25
C. Run a diagnostic on the cable
D. Reboot the workstations
E. Run SNMP on the mail server
18. What are common items that must be configured correctly when installing a Network Interface Card (NIC)?
A. PCI or ISA slot
B. IRQ setting
C. DMA Address
E. I/O Address
19. What is the file called that resides on a host and contains host names and their IP addresses?
A. Lookup file
B. Address file
C. Host file
D. ARP file
E. Names file
20. How many users can share the same user name on a network?
A. Depends on the number of licensed connections are owned
B. As many as you need, as long as only one person is logged in.
C. Only one, each person must have a unique network name
D. Two, as long as each one has a unique password
21. What file can be edited to resolve the domain www.myserver.com <http://www.myserver.com> on a UNIX machine?
E. Routing Table
22. What name resolution system can be used across different common network platforms?
23. To configure a NIC for use with a Linux OS you would type the ________ command.
24. By default, ARP entries are retained in memory for:
A. 2 minutes unless they have been reused, then they'll be retained up to 10 minutes
B. 36 hours unless they are renewed half way before being purged
C. For as long as the PC remains connected to the network
D. 5 minutes unless a manual request is made to keep the tables longer
E. 10 minutes or more if cache memory is not full.
25. What information does TRACERT provide that ping does not?
A. How much time it takes to reach a host
B. DNS server addresses
C. The IP address of the route device
D. How many hops away a target device is
E. Physical MAC address of target host
26. You are troubleshooting a Windows-based PC and wish to continuously send ICMP packets for review. To accomplish this, you would type:
A. NETSTAT -C
B. NBTSTAT /S
C. ARP -T
D. IPCONFIG /T
E. PING -t
27. ________is a utility that sends an ICMP request (by default) 4 times.
28. What three things do you need to specify on a workstation for DNS resolution?
A. Domain name
B. Host name
C. NetBIOS name
D. WINS address
E. IP address of the DNS server
29. Draw a line from each Class Type to its associated IP address type (not all IP addresses will be used):
Class Types IP Addresses
Class A 22.214.171.124
Class B 127.0.0.1
Class C 126.96.36.199
30. Your 100 PC network is bogged down. Everything is connected correctly and there are no conflicts that you are aware of. What can you use to troubleshoot the problem?
C. Loopback address
D. Network Monitor
E. Performance Monitor
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