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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. Physical layer international standard for serial communication
PPP
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Asynchronous Transfer Mode (ATM)
Encapsulation ppp
2. A point-to-point protocol used on leased lines
Link Access Procedure - D-Channel (LAPD)
High-Level Data Link Control (HDLC) protocol
CSU/DSU
Serial
3. Uses MD5 challange/response
HDLC - Frame Relay - PPP
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Challenge Handshake Authentication Protocol (CHAP)
4. 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
Show interface
Asynchronous Transfer Mode (ATM)
Config t - interface serial 0 - encapsulation ppp
CSU/DSU
5. Write the commands to configure a username of todd and password of cisco that is used on a Cisco router
Link Control Protocol (LCP)
Point-to-Point Protocol (PPP)
Username todd password cisco
High-Level Data Link Control
6. Which of that following is a packet-switching encapsulation?
Point-to-Point Protocol (PPP)
Frame Relay
Network control Protocol (NCP)
PPP
7. Data Link layer protocol that can be used over either asynchronous serial (dial-up) or synchronous serial (ISDN) media
Local loop
Point-to-Point Protocol (PPP)
Frame Relay
Frame Relay
8. 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 - HDLC - Frame Relay
PPP
data terminal equipment (DTE)
Encapsulation ppp
9. WAN stands for?
CSU/DSU
Link Access Procedure - Balanced (LAPB)
Demarcation point
Wide Area Network
10. 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)
High-Level Data Link Control (HDLC) protocol
Supplied by the CSU/DSU
DCE network
High-Level Data Link Control (HDLC) protocol
11. Which of the following encapsulations was considered an upgrade from x.25?
Frame Relay
serial transmission
HDLC
HDLC - PPP - and Frame Relay
12. HDLC stands for what?
LCP
High-Level Data Link Control (HDLC) protocol
Show interface serial 0
High-Level Data Link Control
13. Data Link and Physical layer specification that provides high performance; successor to X.25
Local loop
HDLC - Frame Relay - PPP
Frame Relay
Point-to-Point Protocol (PPP)
14. Connects the demarc to the closest switching office - called a central office
High-Level Data Link Control (HDLC) protocol
Local loop
Point-to-Point Protocol (PPP)
Password Authentication Protocol (PAP)
15. If you had one serial interface on your router and needed to connect many remote locations - which Data Link encapsulation should you use?
Point-to-Point Protocol (PPP)
HDLC
Frame Relay
Authentication phase
16. 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
Link Access Procedure - Balanced (LAPB)
The layer 2 frame types are not compatible
Point-to-Point Protocol
High-Level Data Link Control (HDLC) protocol
17. Which protocol in PPP is used to identify the routed protocols?
NCP
Serial
Packet switching
Encapsulation ppp
18. This point connects the customers to the provider's switching network
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Central office (CO) or point of presence (POP)
High-Level Data Link Control (HDLC) protocol
19. Nonproprietary
Point-to-Point Protocol (PPP)
Frame Relay
Local loop
Frame Relay
20. What does PPP mean?
Point-to-Point Protocol
HDLC
High-Level Data Link Control (HDLC) protocol
Show interface
21. What is the reason why the serial link between the Corp router and the Remote router will not come up?
Serial
Point-to-Point Protocol (PPP)
The layer 2 frame types are not compatible
Wide Area Network
22. 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
LAPD
High-Level Data Link Control (HDLC)
Central office (CO) or point of presence (POP)
Point-to-Point Protocol (PPP)
23. Which encapsulations can be configured on a serial interface? (Choose three.)
Config t - interface serial 0 - encapsulation ppp
data terminal equipment (DTE)
EIA/TIA-232-C - V.24 - V.35 - and ISDN
HDLC - Frame Relay - PPP
24. 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
Packet switching
Link Control Protocol (LCP)
Challenge Handshake Authentication Protocol (CHAP)
Supplied by the CSU/DSU
25. Write the commands to configure s0 to PPP encapsulation
Link establishment phase
Config t - interface serial 0 - encapsulation ppp
High-Level Data Link Control (HDLC)
Leased lines
26. When PPP connections are started - the links go through three phases of session establishment. What are the three phases?
Frame Relay
Serial
Link establishment - Authentication phases (optional) - Network layer protocol phase
Frame Relay
27. LCP packets are sent by each PPP device to configure and test the link
Link establishment phase
data terminal equipment (DTE)
PPP
High-Level Data Link Control (HDLC)
28. No authentication
Config t - interface serial 0 - encapsulation ppp
Toll network
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
29. Uses the Network Control Protocol (NCP) to allow multiple Network layer protocols to be encapsulated and sent over a PPP data link
Network layer protocol phase
Link Access Procedure - D-Channel (LAPD)
LCP
Authentication phase
30. Which PPP protocol provides link establishment?
LCP
EIA/TIA-232-C - V.24 - V.35 - and ISDN
Point-to-Point Protocol (PPP)
Authentication phase
31. Method of establishing - configuring - maintaining - and terminating the point-to-point connection
Link Control Protocol (LCP)
Network layer protocol phase
serial transmission
Point-to-Point Protocol (PPP)
32. Which of the following protocols are used with ISDN as an out-of-band protocol?
High-Level Data Link Control (HDLC)
PAP and CHAP
Point-to-Point Protocol (PPP)
LAPD
33. Less secure; Passwords are sent in clear text
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
Password Authentication Protocol (PAP)
Point-to-Point Protocol (PPP)
34. Serial interfaces by default; connect into data communication equipment (DCE)
Username todd password cisco
High-Level Data Link Control (HDLC) protocol
Local loop
data terminal equipment (DTE)
35. Protocol stack is specified at the Physical and Data Link layers only
Network layer protocol phase
Supplied by the CSU/DSU
Point-to-Point Protocol (PPP)
Customer premises equipment (CPE)
36. 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
Circuit switching
High-Level Data Link Control (HDLC) protocol
Local loop
data terminal equipment (DTE)
37. The spot where the service provider's responsibility ends and the CPE begins
High-Level Data Link Control (HDLC)
LAPD
Demarcation point
Username todd password cisco
38. Method for encapsulating datagrams over serial links
High-Level Data Link Control
Authentication phase
High-Level Data Link Control (HDLC)
Point-to-Point Protocol (PPP)
39. To connect two DTE networks together through a DCE network
Point-to-Point Protocol (PPP)
High-Level Data Link Control (HDLC) protocol
High-Level Data Link Control (HDLC) protocol
Wide Area Network (WAN)
40. A trunk line inside a WAN provider's network; a collection of switches and facilities owned by the ISP
Challenge Handshake Authentication Protocol (CHAP)
Point-to-Point Protocol (PPP)
DCE network
Toll network
41. If required - either CHAP or PAP can be used to authenticate a link
Network layer protocol phase
HDLC - Frame Relay - PPP
LCP
Authentication phase
42. Can encapsulate several layer 3 routed protocols and provide authentication - dynamic addressing - and callback
The layer 2 frame types are not compatible
Integrated Services Digital Network (ISDN)
Point-to-Point Protocol (PPP)
Frame Relay
43. What is the default serial encapsulation used on Cisco routers?
HDLC
Toll network
Link establishment phase
Asynchronous Transfer Mode (ATM)
44. Used with ISDN at the Data Link layer (layer 2) as a protocol for the D (signaling) channel
Link Access Procedure - D-Channel (LAPD)
PAP and CHAP
Link Control Protocol (LCP)
Network control Protocol (NCP)
45. Method of establishing and configuring different Network layer protocols
HDLC - PPP - and Frame Relay
Network control Protocol (NCP)
Point-to-Point Protocol (PPP)
Asynchronous Transfer Mode (ATM)
46. If you have a T1 - what must you connect from your router to a demarc?
CSU/DSU
High-Level Data Link Control
HDLC
High-Level Data Link Control (HDLC) protocol
47. Specifies an encapsulation method for data on synchronous serial data links using frame characters and checksums
PPP
NCP
High-Level Data Link Control (HDLC) protocol
The layer 2 frame types are not compatible
48. Which is true regarding HDLC?
It is Cisco proprietary
LAPD
High-Level Data Link Control (HDLC) protocol
LCP
49. Uses the LCP (Link Control Protocol) to build and maintain data link connections
High-Level Data Link Control (HDLC) protocol
Wide Area Network
Toll network
Point-to-Point Protocol (PPP)
50. Which are considered WAN connection types? (Choose three.)
HDLC - Frame Relay - PPP
Encapsulation ppp
Packet Switching - Circuit Switching - Leased Lines
PPP - HDLC - Frame Relay