Network+ Exam Practice

Network+ Final Exam 1. Summarize the role of Layer 6 in the Open System Interconnection (OSI) model.

• Provides an interface for software programs on network hosts that have established a communications channel.
• Administers the process of establishing the dialog, managing data transfer, and then ending the session.
• Moves data around an internetwork using logical network and host IDs.
• Transforms data between the format required for the network and the format required for the application.

Compare the Open System Interconnection (OSI) model and the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol stack and determine which statements accurately distinguish between the two. (Select two).

• The TCP/IP protocol stack consists of 5 layers compared to the 7 layers found in the OSI model.
• The Application layer of TCP/IP consolidates Layers 5-7 of the OSI model.
• PPP, PPTP, and L2TP occur at the Link layer of the TCP/IP protocol stack and occur at Layer 2 of the OSI model.
• TCP and UDP occur at the Internet layer of the TCP/IP protocol stack.

A packet is being sent from Network 1 to Network 4. The shortest route is for the packet to use the path 1234. A router fails at Network 3 and the packet uses an alternate path of 1254. This scenario depicts the application of which of the following technology?

• Circuit-switched path
• Packet switching
• Circuit
• Fragmentation

A technician has been tasked to determine the baud rate of a connection. Evaluate transmission medium characteristics and determine what the technician will be calculating.

• The amount of information that can be transmitted per second
• The number of symbols that can be transmitted per second
• The combination of signaling speed and encoding method
• The loss of signal strength between two measurements

Evaluate the characteristics of a Media Access Control (MAC) address to determine which of the following are valid MAC addresses. (Select two)

• 00:82:3f:7b:2d:ab
• 00:82:3f:7h:2d:ag
• 0082.3f7b.2dab
• 00823f7h2dag

Two nodes are communicating over a fiber optic cable connection. Evaluate the types of transmission media and determine which of the following use two nodes to conduct their communication.

• Digital Signaling
• Line Coding
• Unbounded media
• Bounded media

Evaluate the characteristics of the preamble of the Ethernet frame format, and determine which statement is an accurate reflection.

• The preamble is used for clock synchronization and consists of 8 bytes of alternating 1s and 0s.
• The preamble is a part of the Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) protocol and is the first step in the Ethernet frame format.
• The preamble is used for clock synchronization and consists of 8 bytes with two consecutive 0s at the end.
• The preamble is a part of the Carrier Sense Multiple Access/Collision Detection (CSMA/CD) protocol and is the first step in the Ethernet frame format.

A frame with a payload of 32 bytes is attempting to transmit over an Ethernet network. Decide what will occur.

• The payload will fail to transmit based on minimum size.
• The payload will transmit due to being under the maximum size.
• The payload will receive extra padding with redundant data to increase the size.
• The payload will experience a reduction in size due to being over the maximum size.

A network administrator needs to extend the distance of the network and would also like to segment the network. What should the system administrator deploy to accomplish this?

• Broadcast domain
• Crossover cable
• Bridge
• Hub

What describes the placement of nodes and how they connect with network media?

• Point-to-point
• Physical bus
• Logical topology
• Physical topology