Which of the following is a device or function whose most notable feature is to encrypt packets before they pass through the Internet?
VPN
Firewall
IDS
NAC
96 Review the snippet from a show ip route command on a router: R 10.1.2.0 [120/1] via 10.1.128.252, 00:00:13, Serial0/0/1 Which of the following statements are true regarding this output?
The administrative distance is 1.
The metric is 1.
The metric is not listed.
The router added this route to the routing table 13 seconds ago.
What is the purpose of GPRS?
to provide data transmission service
to provide radio service
to provide global positioning system service
to ensure compliance with world time
Which one is not mainly a cell network standard?
GSM
AMPS/DAMPS
CDMA
WiMAX
What wi-fi standard is the latest one?
802.11a
802.11b
802.11g
802.11n
What is the maximum speed of 802.11n network?
11 Mbit/s
48 Mbit/s
54 Mbit/s
248 Mbit/s
Which technology can make an ordinary object a part of a computer network?
CDMA
WiMax
WiFi
RFID
What kind of physical interface can be used for LAN communications?
RJ-45
EIA/TIA-232
V.35
X.21
You have a network with a host address of 172.16.17.0/22. Which is another valid host address in the same subnet?
172.16.17.1 255.255.255.252
172.16.0.1 255.255.240.0
172.16.20.1 255.255.254.0
172.16.16.1 255.255.255.240
172.16.18.255 255.255.255.252.0
Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?
172.16.0.5
172.16.1.100
172.16.1.198
172.16.2.255
The network address of 172.16.0.0/19 provides how many subnets and hosts?
7 subnets, 30 hosts each
7 subnets, 2,046 hosts each
7 subnets, 8,190 hosts each
8 subnets, 8,190 hosts each
Which two statements describe the IP address 10.16.3.65/23?
The subnet address is 10.16.3.0 255.255.254.0
The lowest host address in the subnet is 10.16.1.1 255.255.254.0
The last valid host address in the subnet is 10.16.2.254 255.255.254.0
The broadcast address of the subnet is 10.16.3.255 255.255.254.0
If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?
172.16.45.0
172.16.45.4
172.16.45.8
172.16.45.12
What is the subnetwork address for a host with the IP address 200.10.5.68/28?
200.10.5.56
200.10.5.32
200.10.5.64
200.10.5.0
Which of the following are private IP addresses?
12.0.0.1
168.172.19.39
172.20.14.36
172.33.194.30
Acknowledgements, sequencing, and flow control are characteristic of which OSI layer?
Layer 2
Layer 3
Layer 4
Layer 5
Segmentation of a data stream happens at which layer of the OSI model?
Physical
Data Link
Network
Transport
Which protocol is an exterior one?
IGRP
RIP
BGP
OSPF
Which protocol has a hop count as its primary metric?
EIGRP
OSPF
RIP
IS-IS
Which OSI layer defines the standards for data formats and encryption?
Layer 4
Layer 5
Layer 6
Layer 7
Which of the following terms are not valid terms for the names of the seven OSI layers?
Application
Data Link
Presentation
Transmission
Which of the following terms are not valid terms for the names of the seven OSI layers?
Application
Data Link
Internet
Session
Which of the following best describes the main function of OSI layer 1 protocols?
Framing
Delivery of bits from one device to another
Addressing
Local Management Interface (LMI)