NCT Chapter 4
Nct chapter 4 quiz
- 1.
Which layer of the OSI model does the IP protocol run at?
- A.
Layer 2
- B.
Layer 3
- C.
Layer 4
- D.
Layer 5
Correct Answer
B. Layer 3 -
- 2.
Which of the following protocols are layer-4 protocols? (select all that apply.)
- A.
TCP
- B.
IP
- C.
ARP
- D.
UDP
Correct Answer(s)
A. TCP
D. UDP -
- 3.
Which protocol is responsible for converting the IP address to a MAC address?
- A.
IP
- B.
TCP
- C.
ARP
- D.
ICMP
Correct Answer
C. ARP -
- 4.
Which protocol is responsible for sending e-mail across the Internet?
- A.
POP3
- B.
IMAP4
- C.
HTTP
- D.
SMTP
Correct Answer
D. SMTP -
- 5.
Which protocol is responsible for connection-oriented communication?
- A.
TCP
- B.
IP
- C.
UDP
- D.
ICMP
Correct Answer
A. TCP -
- 6.
Which protocol is responsible for error reporting and status information?
- A.
ICMP
- B.
TCP
- C.
UDP
- D.
IP
Correct Answer
A. ICMP -
- 7.
Which protocol is responsible for logical addressing and delivery of packets?
- A.
ICMP
- B.
TCP
- C.
IP
- D.
UDP
Correct Answer
C. IP -
- 8.
Which TCP/IP setting is not required if you want to communicate on the LAN by IP address only?
- A.
IP address
- B.
Subnet mask
- C.
Default gateway
- D.
DNS
Correct Answer
C. Default gateway -
- 9.
How many bits in an IP address?
- A.
8 bits
- B.
32 bits
- C.
48 bits
- D.
96 bits
Correct Answer
B. 32 bits -
- 10.
How many octets in an IP address?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
D. 4 -
- 11.
A computer with a subnet mask of 255.255.255.0 has how many octets for the network ID?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
C. 3 -
- 12.
A computer with the IP address of 134.67.89.12 and a subnet mask of 255.255.255.0.0 is on the same network with which of the following systems?
- A.
134.76.89.11
- B.
134.67.112.23
- C.
13.4.67.34
- D.
109.67.45.10
Correct Answer
B. 134.67.112.23 -
- 13.
Which network address class supports 65,534 hosts?
- A.
Class A
- B.
Class B
- C.
Class C
- D.
Class D
Correct Answer
B. Class B -
- 14.
What is the default subnet mask for a Class C network?
- A.
255.255.255.0 (seriously -.-)
- B.
Lol
Correct Answer
A. 255.255.255.0 (seriously -.-)Explanation
easiest question aliveRate this question:
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- 15.
Which address is reserved for internal loopback functions?
- A.
0.0.0.0
- B.
1.0.0.1
- C.
121.0.0.1
- D.
127.0.0.1
Correct Answer
D. 127.0.0.1 -
- 16.
What is the well-known port number for the HTTP service?
- A.
20
- B.
21
- C.
80
- D.
25
Correct Answer
C. 80 -
- 17.
Which of the following addresses is a private IP address? (select all that apply)
- A.
10.0.0.34
- B.
191.167.34.5
- C.
172.16.7.99
- D.
12.108.56.7
Correct Answer(s)
A. 10.0.0.34
C. 172.16.7.99 -
- 18.
Which port is used by SMTP?
- A.
23
- B.
25
- C.
443
- D.
110
Correct Answer
B. 25 -
- 19.
What is the subnet mask for 171.103.2.30
- A.
255.0.0.0
- B.
255.255.0.0
- C.
255.255.255.0
- D.
255.255.255.255
Correct Answer
B. 255.255.0.0 -
- 20.
Which network service is responsible for assigning IP addresses out to systems on the network when they boot up?
- A.
DNS
- B.
WINS
- C.
DHCP
- D.
Server
Correct Answer
C. DHCP -
- 21.
Which network service is responsible for resolving (or converting) FQDNs to IP addresses?
- A.
DNS
- B.
WINS
- C.
DHCP
- D.
Server
Correct Answer
A. DNS -
- 22.
Bob is having trouble pinging addresses by their FQDN, but he can seem to ping them by their IP address. What should you do to help Bob?
- A.
Verify Bob's WINS setting in TCP/IP
- B.
Verify Bob's DNS setting in TCP/IP
- C.
Make sure that the system Bob is trying to connect to is in the LHMOSTS file.
- D.
Make sure that the system Bob is trying to connect to is on the network.
Correct Answer
B. Verify Bob's DNS setting in TCP/IP -
- 23.
Which network service is responsible for allowing Microsoft clients access to the file system on a UNIX server?
- A.
NAT
- B.
NFS
- C.
SMB
- D.
Samba
Correct Answer
D. Samba -
- 24.
Which network service is responsible for assigning IP addresses out to clients on the network?
- A.
NAT
- B.
WINS
- C.
DHCP
- D.
NFS
Correct Answer
C. DHCP -
- 25.
Which network service is responsible for allowing Microsoft clients to access the file system on Microsoft servers?
- A.
SMB
- B.
NFS
- C.
NAT
- D.
Samba
Correct Answer
A. SMB -
- 26.
Which network service is responsible for hiding internal network resources by changing the source address of every outbound packet?
- A.
NAT
- B.
NFS
- C.
SMB
- D.
Samba
Correct Answer
A. NAT -
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