Assignment:
Question 1 Routers function at which layer of the OSI model?
a. D. Transport
b. A. Physical
c. C. Network
d. B. Data Link
Question 2 Which TCP/IP model layer uses connection-oriented protocols?
a. D. Transport
b. A. Internet
c. B. Application
d. C. Link
Question 3 Which layer of the OSI model is the only layer divided into two sublayers?
a. C. Data Link
b. A. Transport
c. B. Network
d. D. Physical
Question 4 Which of these statements best describes an Application Programming Interface?
a. A. It is the GUI interface that Windows uses to interact with the user.
b. B. It is the top layer of the OSI model of networking.
c. C. It provides programmers with a standard way to extend an application?s capabilities.
d. D. It is a protocol that allows Web browsers to request data from a Web server.
Question 5 NICs send and receive binary data as pulses of all of the following EXCEPT ___________.
a. A. electricity
b. B. radio waves
c. D. light
d. C. gamma rays
Question 6 Which standards organization is named for the Greek word for ?equal??
a. D. IEEE
b. B. ISO
c. A. OSI
d. C. Cisco
Question 7 Routers have which of the following capabilities?
a. C. They allow network connections across data lines that don?t use Ethernet.
b. D. They allow a network administrator to configure hardware settings.
c. B. They allow an IP address to be assigned to each computer.
d. A. They allow a MAC address to be assigned to each computer.
Question 8 What is the unique numeric identifier assigned to each device at the Network layer of a TCP/IP network?
a. D. port number
b. B. MAC address
c. C. router name
d. A. IP address
Question 9 Which of the following best describes Logical Link Control (LLC)?
a. B. It is a sublayer of the Data Link layer.
b. D. It controls open network sessions.
c. A. It is a Layer 1 protocol.
d. C. It remembers the NIC?s MAC address.
Question 10 When it receives data from the upper layers, which layer of the OSI model assembles the data into smaller pieces called packets?
a. A. Data Link
b. C. Network
c. D. Transport
d. B. Physical
Question 11 Which of the following statements about the OSI is FALSE?
a. D. Each layer of the OSI model addresses an essential network task.
b. B. Each protocol needs to understand all of the protocols handling all the other layers.
c. A. The OSI model encourages modular design in networking.
d. C. The OSI model provides a common jargon to describe the function of any network protocol.
Question 12 Which layer of the OSI model uses routers and IP addresses to ensure that packets arrive at the correct system?
a. A. Presentation
b. D. Data Link
c. C. Network
d. B. Application
Question 13 All NICs on the same network must use the same __________, or they will not be able to communicate with other NICs.
a. A. frame check sequence
b. C. frame type
c. D. IP address
d. B. MAC address
Question 14 Where does the CRC originate in a network frame?
a. B. The receiving NIC attaches it.
b. A. The sending NIC attaches it.
c. C. The network operating system generates it and attaches it.
d. D. The network administrator attaches it
Question 15 How are incoming frames handled by a switch?
a. B. The frames are received by every NIC, but only the NIC with the matching MAC address processes the frame.
b. C. Every NIC processes the frame when it receives it.
c. D. The NIC broadcasts the contents of the frame.
d. A. The frames are sent only to the NIC that has the destination MAC address.