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Wide Area Netwoking Protocols
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Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. Which of that following is a packet-switching encapsulation?
Frame Relay
Customer premises equipment (CPE)
Encapsulation ppp
Point-to-Point Protocol (PPP)
2. A connection-oriented protocol at the Data Link layer for use with X.25; causes a tremendous amount of overhead because of its strict time-out and windowing techniques; can also be used as a simple data link transport
HDLC
Frame Relay
data terminal equipment (DTE)
Link Access Procedure - Balanced (LAPB)
3. A point-to-point protocol used on leased lines
HDLC
High-Level Data Link Control (HDLC)
High-Level Data Link Control (HDLC) protocol
Packet Switching - Circuit Switching - Leased Lines
4. One bit at a time over a single channel
serial transmission
HDLC - LCP - NCP
Frame Relay
High-Level Data Link Control (HDLC) protocol
5. What are the PPP Data Link protocols?
Point-to-Point Protocol (PPP)
Authentication phase
HDLC - LCP - NCP
PPP - HDLC - Frame Relay
6. What is the default serial encapsulation used on Cisco routers?
Username todd password cisco
HDLC
Link establishment phase
Network control Protocol (NCP)
7. Uses the LCP (Link Control Protocol) to build and maintain data link connections
High-Level Data Link Control (HDLC) protocol
Point-to-Point Protocol (PPP)
serial transmission
Frame Relay
8. The spot where the service provider's responsibility ends and the CPE begins
Point-to-Point Protocol (PPP)
PPP - HDLC - Frame Relay
Point-to-Point Protocol (PPP)
Demarcation point
9. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Local loop
Wide Area Network (WAN)
Leased lines
Toll network
10. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
EIA/TIA-232-C - V.24 - V.35 - and ISDN
High-Level Data Link Control (HDLC) protocol
Config t - interface serial 0 - encapsulation ppp
Customer premises equipment (CPE)
11. Physical layer international standard for serial communication
Point-to-Point Protocol (PPP)
Demarcation point
EIA/TIA-232-C - V.24 - V.35 - and ISDN
NCP
12. Which of the following encapsulations was considered an upgrade from x.25?
Frame Relay
High-Level Data Link Control (HDLC) protocol
Customer premises equipment (CPE)
Demarcation point
13. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
DCE network
It is Cisco proprietary
Point-to-Point Protocol (PPP)
serial transmission
14. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link
Integrated Services Digital Network (ISDN)
High-Level Data Link Control (HDLC) protocol
Network layer protocol phase
Leased lines
15. Uses MD5 challange/response
Leased lines
Challenge Handshake Authentication Protocol (CHAP)
High-Level Data Link Control (HDLC) protocol
Frame Relay
16. WAN stands for?
Integrated Services Digital Network (ISDN)
Wide Area Network (WAN)
Wide Area Network
PAP and CHAP
17. Protocol stack is specified at the Physical and Data Link layers only
Point-to-Point Protocol (PPP)
Authentication phase
Integrated Services Digital Network (ISDN)
HDLC - Frame Relay - PPP
18. Which encapsulations can be configured on a serial interface? (Choose three.)
PPP - HDLC - Frame Relay
HDLC - Frame Relay - PPP
Serial
Point-to-Point Protocol (PPP)
19. Nonproprietary
Packet switching
Point-to-Point Protocol (PPP)
LCP
Link establishment phase
20. Bit-oriented Data Link layer protocol
High-Level Data Link Control (HDLC) protocol
Link Access Procedure - Balanced (LAPB)
Point-to-Point Protocol (PPP)
Central office (CO) or point of presence (POP)
21. A set of digital services that transmit voice and data over existing phone lines
Challenge Handshake Authentication Protocol (CHAP)
Integrated Services Digital Network (ISDN)
HDLC
Point-to-Point Protocol (PPP)
22. Write the command to see the encapsulation method on serial 0 of a Cisco router
Network layer protocol phase
HDLC
Show interface serial 0
Network control Protocol (NCP)
23. What are the two PPP authentication methods?
Customer premises equipment (CPE)
Show interface
PAP and CHAP
High-Level Data Link Control (HDLC) protocol
24. 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
Config t - interface serial 0 - encapsulation ppp
High-Level Data Link Control (HDLC)
Circuit switching
Packet Switching - Circuit Switching - Leased Lines
25. Method for encapsulating datagrams over serial links
Link establishment - Authentication phases (optional) - Network layer protocol phase
DCE network
Packet switching
High-Level Data Link Control (HDLC)
26. What is a good command to verify your serial interface on a router?
Point-to-Point Protocol (PPP)
LCP
Username todd password cisco
Show interface
27. Which Data Link encapsulation can be used if you have one free serial interface and many remote offices to connect?
Customer premises equipment (CPE)
Link Access Procedure - Balanced (LAPB)
Frame Relay
Config t - interface serial 0 - encapsulation ppp
28. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
High-Level Data Link Control (HDLC)
Link establishment - Authentication phases (optional) - Network layer protocol phase
Show interface
Frame Relay
29. To connect two DTE networks together through a DCE network
Wide Area Network (WAN)
data terminal equipment (DTE)
Wide Area Network
High-Level Data Link Control (HDLC) protocol
30. Data Link and Physical layer specification that provides high performance; successor to X.25
CSU/DSU
High-Level Data Link Control (HDLC) protocol
Frame Relay
Asynchronous Transfer Mode (ATM)
31. If required - either CHAP or PAP can be used to authenticate a link
HDLC - Frame Relay - PPP
Authentication phase
Network control Protocol (NCP)
Central office (CO) or point of presence (POP)
32. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Point-to-Point Protocol (PPP)
Link Access Procedure - D-Channel (LAPD)
Password Authentication Protocol (PAP)
Point-to-Point Protocol (PPP)
33. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
Network control Protocol (NCP)
Frame Relay
Point-to-Point Protocol (PPP)
HDLC
34. 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
Config t - interface serial 0 - encapsulation ppp
Link establishment - Authentication phases (optional) - Network layer protocol phase
Link Access Procedure - Balanced (LAPB)
Asynchronous Transfer Mode (ATM)
35. Less secure; Passwords are sent in clear text
Password Authentication Protocol (PAP)
Network control Protocol (NCP)
PAP and CHAP
Point-to-Point Protocol
36. Which are considered WAN connection types? (Choose three.)
Network layer protocol phase
data terminal equipment (DTE)
Supplied by the CSU/DSU
Packet Switching - Circuit Switching - Leased Lines
37. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
High-Level Data Link Control (HDLC) protocol
serial transmission
Network layer protocol phase
Username todd password cisco
38. Which protocol in PPP is used to identify the routed protocols?
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Password Authentication Protocol (PAP)
NCP
39. Designed to allow the simultaneous use of multiple Network layer protocols
CSU/DSU
High-Level Data Link Control (HDLC) protocol
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Network control Protocol (NCP)
40. To transport layer 3 packets across a Data Link layer point-to-point link
PPP - HDLC - Frame Relay
Point-to-Point Protocol (PPP)
Frame Relay
Wide Area Network
41. 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
High-Level Data Link Control
High-Level Data Link Control (HDLC) protocol
PPP
DCE network
42. Write the commands to configure s0 to PPP encapsulation
Config t - interface serial 0 - encapsulation ppp
HDLC - PPP - and Frame Relay
HDLC
data terminal equipment (DTE)
43. 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
Encapsulation ppp
Network control Protocol (NCP)
CSU/DSU
Circuit switching
44. 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
High-Level Data Link Control (HDLC) protocol
serial transmission
CSU/DSU
45. If you have a T1 - what must you connect from your router to a demarc?
Asynchronous Transfer Mode (ATM)
Packet switching
CSU/DSU
Frame Relay
46. Method of establishing and configuring different Network layer protocols
Network control Protocol (NCP)
High-Level Data Link Control
Point-to-Point Protocol (PPP)
Serial
47. What are common Data Link WAN encapsulations?
Frame Relay
HDLC - PPP - and Frame Relay
PAP and CHAP
Local loop
48. What is the default serial encapsulation on a Cisco router?
CSU/DSU
High-Level Data Link Control (HDLC) protocol
HDLC
Frame Relay
49. Serial interfaces by default; connect into data communication equipment (DCE)
High-Level Data Link Control
data terminal equipment (DTE)
Point-to-Point Protocol (PPP)
HDLC - LCP - NCP
50. Which of the following protocols are used with ISDN as an out-of-band protocol?
High-Level Data Link Control
Frame Relay
LAPD
Integrated Services Digital Network (ISDN)
Can you answer 50 questions in 15 minutes?
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