CCNA Semester 1 - Chapter 9 Review
- 1. Ethernet operates at two layers of the OSI model, the Data-Link Layer and the _____________ Layer.
A) network
B) physical
C) transport
D) application
- 2. "Interframe spacing" refers to the minimum interval, measured in bit-times, that any station must wait before sending another _____________.
A) wireless wave
B) frame
C) interrupt signal
D) radio wave
- 3. "Interframe spacing" also refers to the the time allowed for slow stations to process a frame and prepare for the next _______________.
A) interrupt signal
B) radio wave
C) wireless wave
D) frame
- 4. The 3 primary functions of DATA-LINK Layer encapsulation are: addressing, frame delimiting, and error _________________.
A) fragmentation
B) limitation
C) detection
D) correction
- 5. In a CSMA/CD network, if collisions occur, the hosts return to a listen-before-transmit ____________.
A) network
B) switch
C) server
D) mode
- 6. The Upper Data Link Sublayer has 3 primary roles: insulates the network layer protocols from changes in the physical equipment, makes the connection with the upper layers, and identifies the network layer ________________.
A) application
B) protocol
C) address
D) port
- 7. The LLC sublayer in Ethernet standards is represented by the _______________ 802.2 standard.
A) ISO
B) Microsoft
C) IEEE
D) IMG
- 8. Why would hosts on an Ethernet LAN experiencing a collision delay before sending another frame?
A) the tables aren't updated
B) they can't help it, cheap devices
C) to avoid another collision
D) to speed up the network
- 9. In an ETHERNET frame, there are three main parts: header, data, and trailer. The Data FIELD is really the encapsulated ______________ layer packet.
A) network
B) application
C) presentation
D) session
- 10. In a CSMA/CD LAN, increased collisions can decrease network _________________________.
A) collisions
B) performance
C) expansion
D) domains
- 11. Ethernet operates at which layer of the TCP/IP Network Model?
A) transport
B) application
C) network access
D) Internet
- 12. The primary responsibility of the ARP is to resolve IPv4 addresses to _______________ addresses.
A) house
B) MAC
C) super
D) street
- 13. MAC addresses are copied into RAM during system startup, they contain a 3-byte OUI, and they are ________ bytes long.
A) 600
B) 6000
C) 6
D) 600000
- 14. In Ethernet-based networks, Switches are preferred because they increase the throughput of data transfers, and ___________________ collisions.
A) maximize
B) stop
C) duplicate
D) minimize
- 15. In Ethernet networks the 2 most common media types are FIBER and copper-based __________.
A) wireless
B) radicalized signaling
C) UTP
D) STP
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