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CCNA 4 Chapter 6 V4.0 Answers
1. Which two protocols can be used to encapsulate traffic that is traversing a VPN tunnel? (Choose two.)
ATM
CHAP
IPsec
IPX
MPLS
PPTP
2. What are the three main functions of a secure VPN? (Choose three.)
accounting
authentication
authorization
data availability
data confidentiality
data integrity
3. Data confidentiality through a VPN can be enhanced through the use of which three encryption protocols? (Choose three.)
AES
DES
AH
hash
MPLS
RSA
4. While monitoring traffic on a cable network, a technician notes that data is being transmitted at 38 MHz. Which statement describes the situation observed by the technician?
Data is being transmitted from the subscriber to the headend.
Data is flowing downstream.
Cable television transmissions are interfering with voice and data transmissions.
The system is experiencing congestion in the lower frequency ranges.
5. Which two statements are valid solutions for a cable ISP to reduce congestion for users? (Choose two.)
use higher RF frequencies
allocate an additional channel
subdivide the network to reduce users on each segment
reduce the length of the local loop to 5.5 kilometers or less
use filters and splitters at the customer site to separate voice from data traffic
6. Data confidentiality through a VPN is achieved through which two methods? (Choose two.)
digital certificates
encryption
encapsulation
hashing
passwords
7. What two protocols provide data authentication and integrity for IPsec? (Choose two.)
AH
L2TP
ESP
GRE
PPTP
8. Which two methods could an administrator use to authenticate users on a remote access VPN? (Choose two.)
digital certificates
ESP
hashing algorithms
smart cards
WPA
9. Which is an example of symmetric-key encryption?
Diffie-Hellman
digital certificate
pre-shared key
RSA signature
10.
Refer to the exhibit. A teleworker is connected over the Internet to the HQ Office. What type of...