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Copy of lab 2 Network

IP and Subnetting

Esraa Al-Sayis

on 10 October 2012

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Transcript of Copy of lab 2 Network

IP Address and Question For the First Exam Lab 2 Network OSI Model Transport Set Application Set
Layer 5: Session - Layer 5 establishes, maintains and ends communication with the receiving device.

Layer 6: Presentation - Layer 6 takes the data provided by the Application layer and converts it into a standard format that the other layers can understand.

Layer 7: Application - This is the layer that actually interacts with the operating system or application whenever the user chooses to transfer files, read messages or perform other network-related activities.

Layer 1: Physical - This is the level of the actual hardware. It defines the physical characteristics of the network such as connections, voltage levels and timing.

Layer 2: Data - In this layer, the appropriate physical protocol is assigned to the data. Also, the type of network and the packet sequencing is defined.

Layer 3: Network - The way that the data will be sent to the recipient device is determined in this layer. Logical protocols, routing and addressing are handled here.

Layer 4: Transport - This layer maintains flow control of data and provides for error checking and recovery of data between the devices. Flow control means that the Transport layer looks to see if data is coming from more than one application and integrates each application's data into a single stream for the physical network. OSI Model and Question (First Exam) Q2
Messages in single networks are called packets.

False Q3 Mulitplexing reduces the cost of _____.
access lines
trunk lines
All of the above. Q4
A multiplexed line gives 67 kbps of throughput. This is _____.

aggregate throughput
individual throughput Q5
A typical Wide Area Network (WAN) transmission speed is _____.

256 kbps
2.56 kbps
256 Mbps
256 Gbps Q6
Which of the following is an Internet Protocal (IP) address?
Both of the above
.Neither of the first two choices. Q7 In a certain internet, the source and destination hosts are separated by five networks (including their own networks). When the source host transmits a packet, how many PACKETS will travel through the internet?

Eleven Q8 Redundancy primarily provides _____.

greater speed
lower cost
All of the above Q9
An internet for internal transmission WITHIN firms that uses Transmission Control Protocol/Internet Protocol (TCP/IP) transmission standards is called a(n) ____.

the global Internet
single network
Internet Q10 In Dynamic Host Configuration Protocol (DHCP), the IP address the client receives is _____.

the IP address of a host the client PC wishes to send packets to
.its own IP address
Neither of the above. Q11
How a message is organized is its _____.
Both of the above. Q12 In Transmission Control Protocol (TCP), which process decides whether to retransmit a lost or damaged segment—the original sender or the receiver?

The original sender
The receiver
Either the sender or the receiver, depending on the situation
Neither of the first two choices Q13
Which of the following layers governs WAN transmission?
The data link layer
The internet layer
Both of the above Q14
An octet is a group of _____ bits.

32 Q15
Four networks are involved in transmissions from the source to the destination host. How many packets will there be along the way when the source host transmits a packet?
5 Q16
Four networks are involved in transmissions from the source to the destination host. How many data link layer destination addresses will there be along the way when the source host transmits a packet?
5 Q17
TCP is a good choice for being made reliable because _____.
it can correct errors that occur at lower layers
error correction only needs to be done on two devices
Both of the above.
Neither of the first two choices. Q18
At which layer would you find instant messaging standards?

Data link
All of the above. Q19
Which of the following is a standards agency for OSI?
Both of the above.
Neither of the first two choices. Q20
TCP/IP is dominant at the _____ layer.

data link
Both of the above
.Neither of the first two choices. Q1
Most corporate data flows over ______________________.
internal corporate networks
the Internet
both of the above about equally
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