Which two statements about DSL are true? (Choose two.)
users are on a shared medium
uses RF signal transmission
local loop can be up to 3.5 miles (5.5km)
physical and data link layers are defined by DOCSIS
user connections are aggregated at a DSLAM located at the CO Answer: -lo...
Detailed Answer Test Ccna 4 Final Exam
Study Guide 2024/2025
Which two statements about DSL are true? (Choose two.)
users are on a shared medium
uses RF signal transmission
local loop can be up to 3.5 miles (5.5km)
physical and data link layers are defined by DOCSIS
user connections are aggregated at a DSLAM located at the CO Answer: -local loop can be up to 3.5
miles (5.5km)*
-user connections are aggregated at a DSLAM located at the CO*
Which two statements are true regarding a PPP connection between two Cisco routers? (Choose two.)
LCP tests the quality of the link.
LCP manages compression on the link.
Only a single NCP is allowed between the two routers.
NCP terminates the link when data exchange is complete.
,With CHAP authentication, the routers exchange plain text passwords. Answer: -LCP tests the
quality of the link.*
-LCP manages compression on the link.*
1 Why is it useful to categorize networks by size when discussing network design?
Knowing the number of connected devices will define how many additional layers will be added to the
three-tier hierarchical network design.
Knowing the number of connected devices will define how many multilayer switches will be necessary at
the core layer.
A high-level redundancy at the access layer may be better implemented if the number of connected
devices is know.
The complexity of networking infrastructure will vary according to the number of connected devices.
Answer: The complexity of networking infrastructure will vary according to the number of connected
devices.
What is a disadvantage of a packet-switched network compared to a circuit-switched network?
fixed capacity
higher latency
less flexibility
higher cost Answer: higher latency
4 Which statement describes a characteristic of dense wavelength division multiplexing (DWDM)?
, it assigns incoming electrical signals to specific frequencies.
it can be used in long-range communications, like connections between ISPs.
it enables bidirectional communications over one pair of copper cables.
it supports the SONET standard, but not the SDH standard. Answer: it can be used in long-range
communications, like connections between ISPs.*
Refer to the exhibit. A network administrator is troubleshooting the OSPF network. The 10.10.0.0/16
network is not showing up in the routing table of Router1. What is the probable cause of this problem?
The OSPF process is configured incorrectly on Router1.
There is an incorrect wildcard mask statement for network 10.10.0.0/16 on Router2.
The OSPF process is not running on Router2.
The serial interface on Router2 is down. Answer: There is an incorrect wildcard mask statement for
network 10.10.0.0/16 on Router2.*
6 The security policy in a company specifies that the staff in the sales department must use a VPN to
connect to the corporate network to access the sales data when they travel to meet customers. What
component is needed by the sales staff to establish a remote VPN connection?
VPN appliance
VPN concentrator
VPN client software
VPN gateway Answer: VPN client software*
7 A network administrator is troubleshooting the dynamic NAT that is configured on router R2. Which
command can the administrator use to see the total number of active NAT translations and the number
of addresses that are allocated from the NAT pool?
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