- Which of the following IP address class is Multicast?
A. Class A
B. Class C
C. Class D
D. Class B - The last address of IP address represents ________
A. Unicast Address
B. Network Address
C. Broadcast Address
D. None of the Above - _______ provides a connection-oriented reliable service for sending messages.
A. IP
B. TCP
3. UDP
4. All of the Above - What is the default subnet mask for a class A network?
A. 127.0.0.1
B. 255.0.0.0
C. 255.255.255.0
D. 255.255.0.0 - Layer 5 of the OSI model is _________
A. Physical layer
B. Data link layer
C. Transport layer
D. Session layer - What is the port number for Simple Mail Transfer Protocol (SMTP)?
A. 21
B. 23
C. 22
D. 25 - What is the default subnet mask for a class C network?
A. 127.0.0.1
B. 255.0.0.0
C. 255.255.255.0
D. 255.255.0.0 - Layer 3 of the OSI model is _________
A. Physical layer
B. Data link layer
C. Network layer
D. Application layer - What is the default subnet mask for a class B network?
A. 127.0.0.1
B. 255.0.0.0
C. 255.255.255.0
D. 255.255.0.0 - Devices on one network can communicate with devices on another network through a __________
A. printer server
B. file server
C. utility server
D. gateway
