2013 Latest Cisco 350-001 Exam


Layer 6 of the 7-Layer OSI model is responsible for which of the following?

A. Common Data Compression and Encryption Schemes
B. Establishing, managing, and terminating communication sessions
C. Synchronizing communication
D. Determining resource availability
E. None of the above
Answer: A
Layer 6 is the Presentation Layer. This layer provides independence from differences in data representation (e.g., encryption and compression) by translating from application to network format, and vice versa. The presentation layer works to transform data into the form that the application layer can accept. This layer formats and encrypts data to be sent across a network, providing freedom from compatibility problems. It is sometimes called the syntax layer.
Incorrect Answers:
B: This describes layer 5 of the OSI model, which is the Session Layer. C, D: These are not responsibilities of the Presentation Layer.

Which of the following is a component of the Data Link Layer of the OSI model?

B. Repeater
C. Multiplexer
D. Hub
E. Router
Answer: A
The data link layer is layer 2 in the OSI model, and deals with things like MAC addresses, and link level technologies such as Ethernet and Token Ring. Network interface cards (NICs) typically implement a specific data link layer technology, so they are often called “Ethernet cards”, “Token Ring cards”, and so on. They also include a 48 bit MAC address, also called a burned in address since these addresses are burned into the cards.
Incorrect Answers:
B, C, D: Repeaters, Hubs, and Multiplexers deal with the physical connections of devices into a network, and they are considered to reside on the physical layer of the OSI model (layer 1).
E: Routers operate at layer 3 and 4 of the OSI model, since they deal with things like layer 3 IP addresses, and TCP/UDP ports.

Which statement is true regarding the use of TFTP?

A. TFTP lies at the Transport layer and runs over IP.
B. TFTP lies at the Application layer and runs over FTP.
C. TFTP lies at the Transport layer and runs over ICMP.
D. TFTP lies at the Application layer and runs over TCP.
E. TFTP lies at the Application layer and runs over UDP.
Answer: E
Trivial File Transfer Protocol (TFTP) is a simplified version of FTP that allows files to be transferred from one computer to another over a network, usually without the use of client authentication (for example, username and password). It is an application that uses UDP port 69.

QUESTION NO: 4 In a data communication session between two hosts, the session layer in the OSI model generally communicates with what other layer of the OSI model?
A. The Physical layer of the peer
B. The data link layer of the peer
C. The peer’s presentation layer
D. The peer’s application layer
E. The peer’s session layer
Answer: E

Which layers do the OSI model and the TCP/IP models share in common? (Choose all that apply)
A. Application
B. Presentation
C. Session
D. Transport
E. Data link
F. Physical
Answer: A, D
The TCP/IP reference model has the following layers:
Application, Transport, Internet, and Host to Network.
Incorrect Answers:
B, C, E, F. The TCP/IP reference model does not have a presentation layer, a session
layer, a physical layer, or a data-link layer.

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