3-6: Broadband Access Flashcards Preview

CISA-2120 Switching > 3-6: Broadband Access > Flashcards

Flashcards in 3-6: Broadband Access Deck (27):
1

Which two network components does a teleworker require to connect remotely and securely from home to the corporate network?

  1. VPN client software or VPN-enabled router
  2. Broadband Internet connection

2

Which cable network communication technology is secure, extremely resistant to noise, and employs spread-spectrum technology?

S-CDMA

2

What are two characteristics of a PPPoE configuration on a Cisco customer router?

  1. The PPP configuration is on the dialer interface
  2. The Ethernet interface does not have an IP address.

3

How is voice traffic affected when the customer uses ADSL technology?

ADSL signals can distortvoice transmissions.

4

What functionality is required on routers tprovide remote workers with VoIP and videoconferencing capabilities?

QoS

5

Which broadband wireless technology is based on the 802.11 standard?

municipal Wi-Fi

5

What advantage does DSL have compared to cable technology?

DSL is not a shared medium.

5

Which type of long distance telecommunication technology provides point-to-point connections and cellular access?

WiMax

5

What is defined by the IEEE 802.16 standard?

WiMAX

7

DOCSIS specifies the ___ sub-layer as a Layer 2 requirement that defines either a deterministic access method, TDMA, or S-CDMA.

MAC

9

_____ creates a PPP tunnel through the DSL connection for the purpose of sending PPP frames.

PPPoE

10

Which two OSI Layer 1 specifications does DOCSIS define for a cable Internet connection?

  1. Channel bandwidth
  2. Modulation technique

11

Which medium is used for delivering data via DSL technology through PSTN?

copper

12

Which technology provides a secure connection between a SOHO and the headquarters office?

VPN

12

What is the ideal solution when no other wireless access is available?

Satellite

13

Which networking technology will ensure reliable and secure remote access when a teleworker connects to a corporate network?

An encrypted VPN tunnel

14

What are two disadvantages of employing teleworkers in an organization?

  1. Increased difficulty of tracking task progress
  2. The need to implement a new management style

16

What are two characteristics of a PPPoE configuration on a Cisccustomer router?

  1. The PPP configuration is on the dialer interface
  2. The Ethernet interface does not have an IP address.

17

Which broadband technology would be best for a user that needs remote access when traveling in mountains and at sea?

satellite

19

In which layer of the TCP/IP protocol model does IPsec apply security to network data?

Internet

20

What are two Layer 2 WAN technologies that can provide secure remote connections between corporate branch offices?

  1. Frame Relay
  2. Leased lines

22

Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes t1492?

To accommodate the PPPoE headers

23

Which DSL technology provides higher downstream bandwidth to the user than upstream bandwidth?

ADSL

24

What includes 2G, 3G, and 4G?

Cellular/Mobile

25

What functionality is required on routers to provide remote workers with VoIP and videoconferencing capabilities?

QoS

26

Which standard specifies the channel frequencies and the deterministic access method of cable networks?

DOCSIS

27

A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

cable