CCNA 640 - 801: Section 4
Âîïðîñû
1. On which of the following types of network will OSPF elect a backup designated router?
A.
Point-to-point and point-to-multipoint casting
B.
B. Nonbroadcast and broadcast multipoint casting
C.
C. Point-to-point and multi-access broadcasting
D.
D. Point-to-multipoint and multi-access broadcasting
E.
E. Nonbroadcast and broadcast multiaccess
2. Which of the following is the binary equivalent of the decimal number 231?
A.
11011011
B.
11110011
C.
11100111
D.
11111001
E.
11010011
3. One of your trainees wants to know which fields are common to the TCP and the UDP segments.
What can you tell her? (Select two options.)
A.
source address
B.
options
C.
sequence number
D.
sources
E.
destination port
F.
checksum
4. Your trainee wants to know which of the following is a Layer 2 protocol used to maintain a loop-free network.
What will you tell her?
A.
RIP
B.
STP
C.
VNP
D.
CDP
E.
VTP
5. Consider the address 192.168.15.19/28, which of the following addresses are valid host addresses on this subnet? (Select two options.)
A.
192.168.15.17
B.
192.168.15.0
C.
192.168.15.29
D.
192.168.15.16
E.
192.168.15.31
6. When dealing with point-to-point networks, which address are OSPF hello packets addressed to?
A.
127.0.0.1
B.
192.168.0.5
C.
223.0.0.1
D.
172.16.0.1
E.
224.0.0.5
F.
254.255.255.255.255
7. In a routine check on the state of the network, you discover that the existing copy of the Cisco IOS is outdated and needs to be updated.
Which of the following commands would you issue to replace the Cisco router IOS with the newer version?
A.
Router# copy tftp flash
B.
Router# copy flash run
C.
Router(config)# restore flash
D.
Router(config)# repair flash
E.
Router> copy start flash
F.
Router# copy start flash
8. One of your trainees wants to know which of the following is types of flow control one can expect while working in a Cisco network environment. What can you tell him? (Select three options.)
A.
Congestion Avoidance.
B.
Learning.
C.
Buffering.
D.
Windowing.
E.
Cut-Throat.
9. Which of the following addresses is representative of a unicast address?
A.
172.31.128.255./18
B.
255.255.255.255
C.
192.168.24.59/30
D.
FFFF.FFFF.FFFF
E.
224.1.5.2
10. In which VTP mode should a catalyst switch be to be able to delete and add VLANs to a management domain?
A.
Transparent
B.
Server
C.
Domains
D.
Client
E.
Users.
11. Which of the following EIGRP route entries would be described as a feasible successor?
A.
A primary route, stored in the routing table
B.
A backup route, stored in the routing table
C.
A backup route, stored in the topology table
D.
A primary route, stored in the topology table
12. Which type of NAT will map multiple private IP addresses to a singular registered IP address through making use of different ports?
A.
static NAT
B.
port loading
C.
overloading
D.
dynamic NAT
13. Which of the following are features of the routing protocol EIGRP? (Select two options.)
A.
Has a maximum hop count of 25
B.
Can differentiate between internal and external routes
C.
Uses a 32-bit metric
D.
Can maintain only one routing table
E.
Need all networks to use the same subnet mask
F.
Supports only one routed protocol
14. What advantages does full-duplex Ethernet have over single-duplex? (Select two options.)
A.
Uses inexpensive hubs
B.
Operates without collisions
C.
Operates on switches
D.
Provides faster data transfer
E.
Utilizes fewer wiring pairs
15. Which of the following WAN protocols is used for out-of-band signaling?
A.
A. HDLC
B.
B. NCP
C.
C. PAP
D.
D. LAPD
E.
E. LAPB
16. Which of the different types of packets mentioned below is sent by routers running OSPF to maintain connectivity with neighboring routers?
A.
OSP packets
B.
hello packets
C.
keepalive packets
D.
dead interval packets
E.
LSU packets
17. You want to form a WAN connection between two routers, one is a Cisco router and the other from another manufacturer, that are directly connected via a serial link.
Which of the following commands can you use?
A.
Lab(config-if)# encapsulation hdlc ansi
B.
Lab(config-if)# encapsulation ppp
C.
Lab(config-if)# encapsulation isdn
D.
Lab(config-if)# encapsulation frame-relay default
18. Your director wants to know what information a router runs through a link-state protocol to build and maintain its topological database.
What can you tell her? (Select two options.)
A.
LSAs from other routers
B.
Beacons received on point-to-point links
C.
hello packets
D.
Routing tables received from other routers
E.
SAP packets sent by other routers
F.
TTL packets from exclusive routers
19. Characteristic such as Acknowledgements, sequencing, and flow control are typical of which OSI layer?
A.
Layer 2
B.
Layer 3
C.
Layer 4
D.
Layer 5
E.
Layer 6
F.
Layer 7
20. If pressed for time, how would you go about quickly configuring a router for basic operations?
A.
ROM Monitor mode
B.
SETUP mode
C.
Autoflash mode
D.
RXBOOT mode