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My Network+ > Chapter 1 > Flashcards

Chapter 1 Flashcards

1
Q

What does OSI Stand for?

A

Open Systems Interconnection

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2
Q

What does TCP/IP stand for?

A

Transmission Control Protocol/Internet protocol

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3
Q

What is the first layer in the OSI?

A

Phyiscal

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4
Q

What is the second layer in the OSI?

A

Data Link

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5
Q

What is the third layer in the OSI?

A

Network - Packets get created and addressed so they can go from one network to another.

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6
Q

What is the fourth layer in the OSI?

A

Transport - The segmentation/reassembly software, also initializes requests for packets that weren’t received in good order.

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7
Q

What is the fifth layer in the OSI?

A

Session - Handles all the sessions for a system. This layer initiates sessions, accept incoming sessions, and opens and closes existing session.

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8
Q

What is the sixth layer in the OSI?

A

Presentation - Translates data from lower layers into a format usable by the Application layer and vice versa.

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9
Q

What is the seventh layer in the OSI?

A

Application - The code built into all operating systems that enables network-aware applications. All operating systems have API (Application Programming Interface) that programmers can use to make their programs network aware.

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10
Q

Where does a hub send data?

A

Data comes into a hub through on e wire and is then sent out through all the other wires. A Hub sends data to all the systems connected to it.

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11
Q

What uniquely identifies every NIC?

A

The unique identifier on a network interface card is called Media Access Control (MAC) Address

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12
Q

What Windows utility do you use to find the MAC address for a system?

A

ipconfig /all

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13
Q

A MAC address is known as a(n)_______ address?

A

The MAC Address is a Physical Address

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14
Q

A NIC sends data in discrete chunks called_____?

A

Data sent in discrete chunks called Frames. Networks use Frames to keep any one NIC from hogging the wire.

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15
Q

Which MAC Address begins a frame?

A

The frame begins with the MAC address of the Receiving systems. Followed by the MAC address of the sending NIC, followed, in turn, by the type of encapsulated data, the data, and FCS.

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16
Q

A frame ends with a special bit called the frame check sequence (FCS). What does the FCS do?

A

The data is followed by a special bit of checking information called the frame check sequence, which the receiving NIC uses to Verifies that the data arrived correctly.

17
Q

Is this a valid MAC Address? (True or False) 01:50:56:A3:04:0C

A

True. A MAC Address has 48-bit Value, and no two NICs ever share the same MAC-Address.

18
Q

Which layer of the TCP/IP Model controls the segmentation and reassebly of data?

A

The Transport Layer controls the segmentation and reassembly of data.

19
Q

Which layer of the OSI seven layer model keeps track of a systems connections to send the right response to the right computer?

A

The Session layer keeps track of a system’s connections to ensure that it sends the right response the right computer.

20
Q

What are the four layers of TCP/IP Model?

A
  1. Application.
  2. Transport.
  3. Internet.
  4. Link/Network interface
21
Q

What does UTP stand for?

A

Unshielded Twisted Pair

22
Q

Anything that moves data from one system to another, such as copper cabling, fiber optics, even radio waves, is part of the____?

A

Layer 1 - Physical Layer

23
Q

What indicates what’s encapsulated in the frame?

A

Type Field

24
Q

The one-to-one addressing scheme is called?

A

Unicast Addressing

25
Q

Anything that deals with a MAC address is part of the OSI ____?

A

Layer 2 - Data Link

26
Q

What layer of the OSI model has sublayers?

A

Layer 2 - Data Link

27
Q

An IP address is known as a ____?

A

Logical Address

28
Q

A Packet is the PDU for which layer of the OSI model?

A

Layer 3 - Network

29
Q

What uses the IP address to forward data and not the MAC address?

A

Router

30
Q

TCP/IP - Any part of the network that deals with complete frames is in the ____ layer.

A

Link

31
Q

TCP/IP - Any device or protocol that deals with pure IP packets – getting an IP packet to its destination sits in the ____ layer.

A

Internet

32
Q

TCP/IP - What combines features of the OSI Transport and Session layers with a dash of application layer?

A

Transport

33
Q

What protocol is used for sending e-mail messages, require that the email client and server verify that they have a good connection before a message is sent.

A

IMAP

34
Q

Is TCP Connectionless? (True Or False)

A

False - TCP is Connection-Oriented.

35
Q

Is UDP connection-oriented? (True Or False)

A

False - UDP (User datagram protocol) is connectionless.

36
Q

TCP/IP - Every application, especially connection-oriented applications, must know how to initiate, control, and disconnect from a remote server. What layer is this?

A

Application

My Network+ (17 decks)

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