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Test your basic knowledge |
Wide Area Netwoking Protocols
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Derived from Synchronous Data Link Control (SDLC); created by IBM as a Data Link connection protocol; very little overhead compared to LAPB; The HDLC header carries no identification of the type of protocol being carried inside the HDLC encapsulation
Leased lines
Username todd password cisco
Link Access Procedure - D-Channel (LAPD)
High-Level Data Link Control (HDLC)
2. A set of digital services that transmit voice and data over existing phone lines
Integrated Services Digital Network (ISDN)
Link Control Protocol (LCP)
HDLC - PPP - and Frame Relay
High-Level Data Link Control (HDLC) protocol
3. Used to create point-to-point links between different vendors' equipment; uses a Network Control Protocol field in the Data Link header to identify the Network layer protocol; allows authentication and multilink connections and can be run over asynch
Frame Relay
Link establishment phase
Point-to-Point Protocol (PPP)
The layer 2 frame types are not compatible
4. The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols - needs authentication of users connecting to the network - and - since some calls wil
PPP
Central office (CO) or point of presence (POP)
Username todd password cisco
LAPD
5. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
High-Level Data Link Control (HDLC) protocol
Username todd password cisco
Point-to-Point Protocol
HDLC - PPP - and Frame Relay
6. What are the two PPP authentication methods?
Encapsulation ppp
The layer 2 frame types are not compatible
PAP and CHAP
Point-to-Point Protocol (PPP)
7. What is the default serial encapsulation used on Cisco routers?
HDLC
Network control Protocol (NCP)
High-Level Data Link Control (HDLC)
High-Level Data Link Control
8. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Supplied by the CSU/DSU
Point-to-Point Protocol (PPP)
Username todd password cisco
PPP - HDLC - Frame Relay
9. Designed to allow the simultaneous use of multiple Network layer protocols
Network control Protocol (NCP)
HDLC - Frame Relay - PPP
Frame Relay
High-Level Data Link Control (HDLC) protocol
10. Which of that following is a packet-switching encapsulation?
Link Access Procedure - D-Channel (LAPD)
Network layer protocol phase
Point-to-Point Protocol (PPP)
Frame Relay
11. This point connects the customers to the provider's switching network
Central office (CO) or point of presence (POP)
serial transmission
HDLC - LCP - NCP
Wide Area Network
12. Protocol stack is specified at the Physical and Data Link layers only
LAPD
Username todd password cisco
Point-to-Point Protocol (PPP)
CSU/DSU
13. Which protocol in PPP is used to identify the routed protocols?
Network control Protocol (NCP)
NCP
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) protocol
14. One bit at a time over a single channel
Show interface
Leased lines
serial transmission
High-Level Data Link Control
15. Bit-oriented Data Link layer protocol
Password Authentication Protocol (PAP)
High-Level Data Link Control (HDLC) protocol
Link Access Procedure - D-Channel (LAPD)
High-Level Data Link Control (HDLC)
16. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Point-to-Point Protocol (PPP)
Integrated Services Digital Network (ISDN)
Point-to-Point Protocol (PPP)
Toll network
17. When a router is connected to a Frame Relay WAN link using a serial DTE interface - how is the clock rate determined?
HDLC - Frame Relay - PPP
Supplied by the CSU/DSU
HDLC - LCP - NCP
Point-to-Point Protocol (PPP)
18. How do you configure a serial interface to use PPP encapsulation?
Encapsulation ppp
Network control Protocol (NCP)
Show interface serial 0
Packet Switching - Circuit Switching - Leased Lines
19. Uses cells instead of packets that are a fixed 53 bytes long; can use isochronous clocking (external clocking) to help the data move faster; provides simultaneous transmission of voice - video - and data
High-Level Data Link Control (HDLC) protocol
Asynchronous Transfer Mode (ATM)
HDLC - LCP - NCP
DCE network
20. Serial interfaces by default; connect into data communication equipment (DCE)
data terminal equipment (DTE)
Point-to-Point Protocol (PPP)
HDLC
Link Control Protocol (LCP)
21. Uses MD5 challange/response
Challenge Handshake Authentication Protocol (CHAP)
Encapsulation ppp
DCE network
Central office (CO) or point of presence (POP)
22. Method for encapsulating datagrams over serial links
High-Level Data Link Control (HDLC)
serial transmission
Username todd password cisco
HDLC - Frame Relay - PPP
23. Which of the following are considered common Data Link WAN encapsulation types? (Choose three.)
Show interface serial 0
Supplied by the CSU/DSU
Link establishment phase
PPP - HDLC - Frame Relay
24. WAN stands for?
Wide Area Network
High-Level Data Link Control (HDLC) protocol
CSU/DSU
It is Cisco proprietary
25. Nonproprietary
Network control Protocol (NCP)
Frame Relay
Point-to-Point Protocol (PPP)
HDLC - LCP - NCP
26. Includes the area from the CSU/DSU - through the provider's wiring and switches - all the way to the CSU/DSU at the other end; provides clocking to the DTE-connected interface (the router's serial interface)
DCE network
Frame Relay
Wide Area Network
Point-to-Point Protocol (PPP)
27. Allows you to share bandwidth with other companies to save money; a network that's designed to look like a leased line yet charges you (and costs) more like circuit switching; data transfers are bursty in nature; Frame Relay and X.25
Authentication phase
Point-to-Point Protocol (PPP)
Link Access Procedure - Balanced (LAPB)
Packet switching
28. What does PPP mean?
Point-to-Point Protocol
NCP
serial transmission
EIA/TIA-232-C - V.24 - V.35 - and ISDN
29. Equipment that's owned by the subscriber and located on the subscriber's premises
PPP - HDLC - Frame Relay
Link Control Protocol (LCP)
Frame Relay
Customer premises equipment (CPE)
30. Write the commands to configure s0 to PPP encapsulation
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC)
Config t - interface serial 0 - encapsulation ppp
Packet Switching - Circuit Switching - Leased Lines
31. Network Control Protocol (NCP) is used to allow multiple Network layer protocols (routed protocols) to be used on a point-to-point connection
High-Level Data Link Control (HDLC) protocol
LAPD
Password Authentication Protocol (PAP)
Point-to-Point Protocol (PPP)
32. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
Point-to-Point Protocol (PPP)
Show interface
NCP
HDLC
33. LCP packets are sent by each PPP device to configure and test the link
Link establishment phase
DCE network
Network control Protocol (NCP)
Frame Relay
34. Which PPP protocol provides link establishment?
Frame Relay
High-Level Data Link Control (HDLC) protocol
PPP - HDLC - Frame Relay
LCP
35. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Frame Relay
Link Access Procedure - Balanced (LAPB)
PPP
Integrated Services Digital Network (ISDN)
36. The spot where the service provider's responsibility ends and the CPE begins
Serial
Demarcation point
Show interface
Point-to-Point Protocol (PPP)
37. What are common Data Link WAN encapsulations?
HDLC
HDLC - PPP - and Frame Relay
Point-to-Point Protocol (PPP)
Network control Protocol (NCP)
38. Connects the demarc to the closest switching office - called a central office
Local loop
CSU/DSU
Network control Protocol (NCP)
It is Cisco proprietary
39. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link
Packet Switching - Circuit Switching - Leased Lines
Serial
Network layer protocol phase
LCP
40. Physical layer international standard for serial communication
HDLC - Frame Relay - PPP
EIA/TIA-232-C - V.24 - V.35 - and ISDN
PPP
High-Level Data Link Control (HDLC) protocol
41. Less secure; Passwords are sent in clear text
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol
High-Level Data Link Control (HDLC) protocol
Password Authentication Protocol (PAP)
42. Which type of port on a router is used for a T1?
Point-to-Point Protocol (PPP)
Frame Relay
Serial
Supplied by the CSU/DSU
43. Which of the following encapsulations was considered an upgrade from x.25?
Circuit switching
Frame Relay
Link establishment phase
The layer 2 frame types are not compatible
44. What is the reason why the serial link between the Corp router and the Remote router will not come up?
The layer 2 frame types are not compatible
Point-to-Point Protocol (PPP)
Customer premises equipment (CPE)
Network control Protocol (NCP)
45. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Link Access Procedure - D-Channel (LAPD)
Toll network
Point-to-Point Protocol (PPP)
Network control Protocol (NCP)
46. What is the default serial encapsulation on a Cisco router?
PAP and CHAP
HDLC - PPP - and Frame Relay
HDLC
The layer 2 frame types are not compatible
47. Write the command to see the encapsulation method on serial 0 of a Cisco router
Demarcation point
Show interface serial 0
Point-to-Point Protocol (PPP)
Wide Area Network (WAN)
48. A point-to-point connection or dedicated connection; a pre-established WAN communications path from the CPE through the DCE switch to the CPE of the remote site - allowing DTE networks to communicate at any time with no setup procedures before transm
Leased lines
LAPD
Point-to-Point Protocol
Point-to-Point Protocol (PPP)
49. Uses dial-up modems or ISDN and is used for low-bandwidth data transfers; No data can transfer before an end-to-end connection is established
Frame Relay
Circuit switching
Supplied by the CSU/DSU
Packet Switching - Circuit Switching - Leased Lines
50. Which is true regarding HDLC?
Toll network
Packet switching
It is Cisco proprietary
High-Level Data Link Control (HDLC) protocol