Nct Chapter 4

1. What is the default subnet mask for a Class C network?

255.255.255.0 (seriously -.-)

Lol

easiest question alive

Explanation

easiest question alive

2. How many bits in an IP address?

8 bits

32 bits

48 bits

96 bits

3. What is the well-known port number for the HTTP service?

20

21

80

25

4. How many octets in an IP address?

1

2

3

4

5. Which network service is responsible for assigning IP addresses out to clients on the network?

NAT

WINS

DHCP

NFS

6. Which layer of the OSI model does the IP protocol run at?

Layer 2

Layer 3

Layer 4

Layer 5

7. 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?

134.76.89.11

134.67.112.23

13.4.67.34

109.67.45.10

8. 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?

Verify Bob's WINS setting in TCP/IP

Verify Bob's DNS setting in TCP/IP

Make sure that the system Bob is trying to connect to is in the LHMOSTS file.

Make sure that the system Bob is trying to connect to is on the network.

9. What is the subnet mask for 171.103.2.30

255.0.0.0

255.255.0.0

255.255.255.0

255.255.255.255

10. Which address is reserved for internal loopback functions?

0.0.0.0

1.0.0.1

121.0.0.1

127.0.0.1

11. Which network address class supports 65,534 hosts?

Class A

Class B

Class C

Class D

12. Which protocol is responsible for sending e-mail across the Internet?

POP3

IMAP4

HTTP

SMTP

13. Which port is used by SMTP?

23

25

443

110

14. Which network service is responsible for assigning IP addresses out to systems on the network when they boot up?

DNS

WINS

DHCP

Server

15. Which network service is responsible for hiding internal network resources by changing the source address of every outbound packet?

NAT

NFS

SMB

Samba

16. A computer with a subnet mask of 255.255.255.0 has how many octets for the network ID?

1

2

3

4

17. Which protocol is responsible for connection-oriented communication?

TCP

IP

UDP

ICMP

18. Which network service is responsible for resolving (or converting) FQDNs to IP addresses?

DNS

WINS

DHCP

Server

19. Which TCP/IP setting is not required if you want to communicate on the LAN by IP address only?

IP address

Subnet mask

Default gateway

DNS

20. Which protocol is responsible for converting the IP address to a MAC address?

IP

TCP

ARP

ICMP

21. Which protocol is responsible for logical addressing and delivery of packets?

ICMP

TCP

IP

UDP

22. Which of the following protocols are layer-4 protocols? (select all that apply.)

TCP

IP

ARP

UDP

Submit

23. Which protocol is responsible for error reporting and status information?

ICMP

TCP

UDP

IP

24. Which network service is responsible for allowing Microsoft clients to access the file system on Microsoft servers?

SMB

NFS

NAT

Samba

25. Which of the following addresses is a private IP address? (select all that apply)

10.0.0.34

191.167.34.5

172.16.7.99

12.108.56.7

Submit

26. Which network service is responsible for allowing Microsoft clients access to the file system on a UNIX server?

NAT

NFS

SMB

Samba

NCT Chapter 4

1. What is the default subnet mask for a Class C network?

2.

What first name or nickname would you like us to use?

2. How many bits in an IP address?

3. What is the well-known port number for the HTTP service?

4. How many octets in an IP address?

5. Which network service is responsible for assigning IP addresses out to clients on the network?

6. Which layer of the OSI model does the IP protocol run at?

7. 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?

8. 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?

9. What is the subnet mask for 171.103.2.30

10. Which address is reserved for internal loopback functions?

11. Which network address class supports 65,534 hosts?

12. Which protocol is responsible for sending e-mail across the Internet?

13. Which port is used by SMTP?

14. Which network service is responsible for assigning IP addresses out to systems on the network when they boot up?

15. Which network service is responsible for hiding internal network resources by changing the source address of every outbound packet?

16. A computer with a subnet mask of 255.255.255.0 has how many octets for the network ID?

17. Which protocol is responsible for connection-oriented communication?

18. Which network service is responsible for resolving (or converting) FQDNs to IP addresses?

19. Which TCP/IP setting is not required if you want to communicate on the LAN by IP address only?

20. Which protocol is responsible for converting the IP address to a MAC address?

21. Which protocol is responsible for logical addressing and delivery of packets?

22. Which of the following protocols are layer-4 protocols? (select all that apply.)

23. Which protocol is responsible for error reporting and status information?

24. Which network service is responsible for allowing Microsoft clients to access the file system on Microsoft servers?

25. Which of the following addresses is a private IP address? (select all that apply)

26. Which network service is responsible for allowing Microsoft clients access to the file system on a UNIX server?