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CYBR 2600 Midterm Review Test Questions & Answers 2024/2025

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CYBR 2600 Midterm Review Test Questions & Answers 2024/2025 The original commercial version of Ethernet supported 10 Mbps bandwidth; the version introduced in the early 1990s supports 100 Mbps; and in 1998, Gigabit Ethernet was introduced. All versions use the same data frame formats, with the...

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  • 10 mai 2024
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  • 2023/2024
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  • CYBR 2600
  • CYBR 2600
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CYBR 2600 Midterm Review Test Questions & Answers 2024/2025
The original commercial version of Ethernet supported 10 Mbps bandwidth; the version introduced in the early 1990s supports 100 Mbps; and in 1998, Gigabit Ethernet was introduced. All versions use the same data frame formats, with the same maximum PDU sizes, so they can interoperate freely. Given this information and what you know of layered technologies, which of the following statements is true? (Choose all that apply.) - ANSWERS1)
Ethernet works at the Data Link and Physical layers of the OSI model, and upgrades to newer, faster versions of Ethernet can be made by changing only the components that work at these layers.
3)
Changes in technology at one layer of the OSI model don't usually affect the operation of other layers.
The addition of information to a PDU as it's passed from one layer to the next is called which of the following? - ANSWERSEncapsulation
Layers acting as though they communicate directly with each other across the network are called which of the following? - ANSWERSPeers
What is the order of the OSI Layer? - ANSWERS7: Application
6: Presentation
5: Session 4: Transport
3: Network
2: Data Link
1: Physical
Which OSI layer creates and processes frames? - ANSWERSData Link
Which OSI layer handles flow control, data segmentation, and reliability? - ANSWERSTransport Which OSI layer governs how a NIC is attached to the network medium? - ANSWERSPhysical
Which OSI layer determines the route a packet takes from sender to receiver? - ANSWERSNetwork
Which OSI layer is responsible for setting up, maintaining, and ending ongoing information exchanges across a network? - ANSWERSSession
Which of the following elements might the Data Link layer add to its PDU? (Choose all that apply.) - ANSWERS1)
Physical addresses
4)
CRC
When and how many times is a CRC calculated? - ANSWERSAt the source and destination and at each intermediary device
Which layer of the OSI model does Project 802 divide into two sublayers? - ANSWERSData Link
What are the names of the sublayers specified as part of Project 802? (Choose all that apply.) - ANSWERS2)
Logical Link Control (LLC)
4)
Media Access Control (MAC)
Which term refers to stripping header information as a PDU is passed from one layer to a higher layer? - ANSWERSDeencapsulation
Which IEEE 802 standard applies to Ethernet? - ANSWERS802.3 Which IEEE 802 standard applies to wireless LANs? - ANSWERS802.11
What's the name of the PDU at the Transport layer? - ANSWERSSegment
At which OSI layer does the PDU contain sequence and acknowledgement numbers? - ANSWERS4
Which of the following is an example of a protocol found at the Application layer? - ANSWERSHTTP
At which Data Link sublayer does the physical address reside? - ANSWERSMedia Access Control (MAC)
Which of the following problems can occur at the Physical layer? - ANSWERSSignal errors caused by noise
Which of the following is a basic function a computer performs? (Choose all that apply.) - ANSWERS1)
Processing
3)
Input
5)
Output
The __________ executes instructions provided by computer programs. - ANSWERSCPU
When a CPU has two or more processors, each one is referred to as a(n) ________. - ANSWERSCore
Which of the following is considered long-term storage? - ANSWERSHard-drive
Which motherboard component controls data transfers between memory, expansion slots, I/O devices, and the CPU? - ANSWERSChipset

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