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Clear my Paper. It was bcuz of
www.exams.ws . All the questions in
the exam are from their study guide. I got help from this site in my
exam.
I have managed some questions
640-801
Q 1. David,
yourAbc trainee, asks you about basic characteristics of switches
and hubs for network connectivity. What should you tell him?
A. Switches take less
time to process frames than hubs take.
B. Switches do not
forward broadcasts.
C. Hubs can filter
frames.
D. Using hubs can
increase the amount of bandwidth available to hosts.
E. Switches increase
the number of collision domains in the network.
Answer: A
Q 2. Your
boss atAbc asks you about half-duplex and full-duplex Ethernet. What
are unique for half duplex Ethernet? (Choose two)
A. Half-duplex
Ethernet operates in a shared collision domain.
B. Half-duplex
Ethernet operates in a private collision domain.
C. Half-duplex
Ethernet has higher effective throughput.
D. Half-duplex
Ethernet has lower effective throughput.
E. Half-duplex
Ethernet operates in a private broadcast domain.
Answer: A D
Q 3. You
work as a technician
atAbc. You are required to configure PPP on an interface on a Cisco
router. A technician is configuring PPP on an interface. Which PPP
authentication methods can you use? (Choose two)
A. SSL
B. VPN
C. PAP
D. LAPB
E. CHAP
F. SLIP
Answer: C E
Q 4. What
function does the Frame Relay DLCI provide with respect toAbcA?
A. Defines the
signaling standard betweenAbcA and the frame switch.
B. Identifies the
circuit betweenAbcA and the frame switch.
C. Identifies the
circuit betweenAbc B and the frame switch.
D. Identifies the
encapsulation used betweenAbcA andAbc B.
E. Defines the
signaling standard betweenAbc B and the frame switch,
Answer: C
Q 5. A
technician are configuring a router namedAbc2. Why does she use
passive-interface command?
A. Allows a
routing protocol to forward updates out an interface that is missing
its IP address.
B. Allows a
router to send routing updates on an interface but not receive
updates via that interface.
C. Allows an
interface to remain up without receiving keep alives.
D. Allows
interfaces to share IP addresses.
E. Allows a
router to receive routing updates on an interface but not send
updates via that interface.
Answer: E
Q 6.
YourAbc trainee Jose are interested in ACLs (access control lists).
He asks you want they can be used for. What should you tell him?
(Choose three)
A. Protect hosts from
viruses.
B. Classify network
traffic.
C. Provide high
network availability.
D. Identify
interesting traffic for DDR.
E. IP route
filtering..640-801
F. Monitor the number
of bytes and packets.
Answer: B, C, E
Q 7. Why do
large OSPF networks use a hierarchical design? (Choose three)
A. To decrease
latency by increasing bandwidth
B. To reduce routing
overhead
C. To speed up
convergence
D. To confine network
instability to single areas of the network
E. To reduce the
complexity of router configuration
F. To lower costs by
replacing routers with distribution layer switches
Answer: B, C, D
Q 8.
A network administrator is trying to add a new router into a
established OSPF network. The networks attached to the new router do
not appear in the routing tables of the other OSPF routers. Given
the information in the partial configuration shown below, what
configuration error is causing this problem?
Router(config)#
router ospf 1
Router(config-router)#
network 10.0.0.0 255.0.0.0 area 0
A. The process id is
configured improperly
B. The OSPF area is
configured improperly
C. The network
wildcard mask is configured improperly
D. The network number
is configured improperly
E. The AS is
configured improperly
F. The network subnet
mask is configured improperly
Answer: C
Q 9.
Which WAN protocol is used for out-of-band signaling?
A. NCP
B. HDLC
C. LAPB
D. LAPD
Answer: D
Q 10. A
Cisco router and a router from another manufacturer are directly
connected via a serial link. Which command can be used on the Cisco
router to form a WAN connection between the routers?
A. Lab(config-if)#
encapsulation hdlc ansi
B. Lab(config-if)#
encapsulation ppp
C. Lab(config-if)#
encapsulation frame-relay default
D. Lab(config-if)#
encapsulation isdn
Answer: B
Q 11. Which
address represents a unicast address?
A. 224.1.5.2
B. FFFF.FFFF.FFFF
C. 192.168.24.59/30
D. 255.255.255.255
E. 172.31.128.255./18
Answer: C
Q 12. Which
of the following describe router functions? (Choose three)
A. Packet switching
B. Collision
prevention on a LAN segment
C. Packet filtering
D. Broadcast domain
enlargement
E. Broadcast
forwarding
F. Internet work
communication
Answer: A, C, F
Q 13. The
following access list was applied outbound on he E0 interface
connected to the 192.168.1.8/29 LAN: access-list 123 deny tcp
192.168.1.8 0.0.0.7 eq 20 any access list 123 deny tcp 192.168.1.9
0.0.0.7 eq 21 any What effect will this access list have?
A. All traffic will
be allowed to exit E0 except FTP traffic.
B. FTP traffic from
192.168.1.22 to any host will be denied.
C. FTP traffic from
192.168.1.9 to any host will be denied.
D. All traffic
exiting E0 will be denied.
E. All FTP traffic to
network 192.168.1.8/29 from any host will be denied.
Answer: D
Q 14. What
is the purpose of pressing the Ctrl+Break keys during the router
password recover procedure?
A. To restart the
router.
B. To bypass the
configuration in Flash.
C. To view the
password before changes are made.
D. To bypass setup
configuration mode.
E. To access ROM
Monitor mode.
Answer: E
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