Book-Cards-Pt3 - Sheet 1 (2) Flashcards Preview

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Flashcards in Book-Cards-Pt3 - Sheet 1 (2) Deck (137):
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answer

2

Which routing protocol uses a composite metric of bandwidth and delay of the line to find the best path to a remote network?

EIGRP

6

Which command will display the current contents of the ARP cache on the local workstation?

arp -a

8

A network device that is used to connect multiple devices without segmenting a network is a                                       ?

Hub

9

The Spanning Tree Protocol allows for redundancy of what networking device?

Bridge (switch)

10

Which can operate at both Layers 2 and Layer 3 of the OSI model?

Layer 3 switch

11

SMTP resides at what layer of the OSI model?

Application

12

A user discovers that their wireless 802.11g Internet connection is intermittently disrupted. What can typically cause this problem?

Cordless phones and/or microwave ovens

13

Which device helps to increase the number of collision domains?

Switch

14

Which logical physical topology does 802.3 utilize?

Bus

15

Which wireless standard has a maximum data rate of 11Mbps?

802.11b

16

What functionality does Kerberos provide?

Authentication of security principles and authorization of access to resources

17

What TCP/IP port numbers does FTP utilize?

20 and 21. 20 is FTP data or a client, and 21 is an FTP server.

18

At what layer of the OSI model does UDP reside?

Transport

19

Convert the following binary string to its dotted decimal address: 11000000.10101000.01100011.00011010

192.168.99.26

20

100BaseTX uses how many pairs of Category 5 unshielded twisted-pair (UTP) cables?

2 pairs

21

What device connects computers with wireless adapters to a network in infrastructure mode?

Access point

22

Converting analog signals to digital signals and digital signals to analog signals can be done using what device?

Modem. Dial-up modems are rarely used today, but cable modems are.

23

The maximum segment length for Ethernet is                     .

100 meters (328 feet)

24

What is the maximum speed of 802.11g?

54Mbps (megabits per second)

25

Which techniques would increase the bandwidth for network transmission by joining multiple connections into one logical connection?

Bonding

26

True/False: Firewalls are used to prevent packets from entering and leaving a network.

TRUE

27

Which device can never run full duplex?

Hub

28

A valid Media Access Control (MAC) address is how many bytes long?

6

29

What well-known port does Trivial File Transfer Protocol (TFTP) use?

69

30

In which OSI layer does a bridge operate?

Data Link

31

An IT specialist is going to implement a packet filter on a network for Internet connections. What port must they allow through the firewall for users to connect to the Web?

80

32

What is the name of the point where local exchange carrier responsibility ends?

Demarc

33

What protocol translates the IP address to its physical network address?

ARP

34

Ethernet networking is known as a physical                                        topology.

Star

35

What is the default port for HTTPS?

443

36

In the Media Access Control (MAC) address 00:B0:D0:6A:F2:B5, what does 00:B0:D0 identify?

The manufacturer of the device, known as the OUI

37

Which network segment is located outside the firewall?

DMZ

38

A network administrator needs to establish a remote connection to a client machine. Telnet is not secure because everything is sent in the clear. Which protocol and port number should be used instead?

Secure Shell (SSH), port 22

43

What fiber connector looks similar to an RJ-45 connector and connects two strands of fiber?

Mechanical transfer registered jack (MT-RJ)

44

What cable type is used to link together two buildings that are over 10 miles (16.09 kilometers) apart?

Single-mode fiber (SMF)

45

What is the maximum Cat 3 length acceptable for a horizontal cross-connect?

100 meters (328 feet)

46

An optical time-domain reflectometer (OTDR) can be used to assess what?

Fiber segments

47

What level of the Open Systems Interconnection (OSI) model does a proxy server operate in?

Application

48

What device is used to create a virtual local area network (VLAN)?

Switch

51

What protocol creates a secure connection between a web browser and a web server and is an alternative to using Telnet?

Secure Sockets Layer (SSL)

52

True/False: If an administrator wants to set up an email server to exchange emails with other servers over the Internet, Simple Mail Transfer Protocol (SMTP) would be utilized.

TRUE

53

Which remote access authentication protocol allows usernames and passwords to be transmitted as clear text?

Password Authentication Protocol (PAP), which has been replaced by CHAP.

54

At what layer of the Open Systems Interconnection (OSI) model does a router function?

Network

55

Simple Mail Transfer Protocol (SMTP) utilizes what well-known Transmission Control Protocol/Internet Protocol (TCP/IP) port number?

25

57

A technician pings 127.0.0.1 and gets the following result - Unable to contact IP driver, error code 2. - What should you do now?

Reinstall the TCP/IP protocol

58

True/False: 172.192.4.256 is a valid Internet Protocol (IP) address.

False

59

What Open Systems Interconnection (OSI) layer converts digital data into electronic signals to be put on a wire?

Physical

60

True/False: Internet Control Message Protocol (ICMP) is used for error reporting with Internet Protocol (IP).

TRUE

61

Which WAN technologies uses 30 64Kpbs channels?

E-1

62

What network hardware allows most traffic collisions?

Hub

63

Which system detects and reports attempts of unauthorized access to the network?

IDS

64

True/False: 32-bit is a valid Wired Equivalent Privacy (WEP) key.

FALSE

65

True/False: 1000Mbps is known as 1000 terabytes per second.

False. It means gigabyte per second.

66

True/False: One of the purposes of a virtual local area network (VLAN) is to add more users.

False. It is to break up broadcast domains.

67

Which device would administer routing in a network?

Router, or Layer 3 switch

69

True/False: If a network administrator needs to restrict access to certain websites, a proxy server should be implemented.

TRUE

70

A technician is terminating a line that was extending an Ethernet jack to a wiring closet. Which hardware tool is necessary to complete the task?

Punch-down tool

71

What is required to pass traffic from one VLAN to another?

Router, or Layer 3 switch

73

At what two layers of the Open Systems Interconnection (OSI) model does a packet-filtering firewall operate?

Network and Transport

74

How many pairs are crossed in a crossover cable?

Two

75

True/False: The maximum speed of 802.11b is 54Mbps (megabits per second).

FALSE

76

True/False: The maximum speed of 802.11b is 11Mbps (megabits per second).

TRUE

77

Which documentation would a network administrator need to update if they have just finished upgrading the firmware on all switches within the LAN?

Physical network diagram

78

True/False: The number of wireless users will affect the range of an 802.11b wireless access point (WAP).

False. It will affect the throughput but not the distance.

79

True/False: 1000BaseCX is an Institute of Electrical and Electronics Engineers (IEEE) copper cable standard.

TRUE

80

True/False: A mesh network has the least collisions.

TRUE

81

True/False: Mesh network topology uses the most cable of any physical topology.

TRUE

82

True/False: 100BaseFX runs over Category 5e cable.

FALSE

83

True/False: 100BaseFX runs over multimode fiber (MMF) cable.

TRUE

84

What is the maximum cable type required for 100BaseTX?

Category 5 unshielded twisted-pair (UTP)

85

True/False: Using a wireless access point (WAP), you can bridge an 802.3 network to an 802.11 network.

TRUE

86

Which type of connector does a 10BaseFL network use?

Straight tip (ST)

87

True/False: The 802.11b/g frequency band is 2.4GHz (gigahertz).

TRUE

88

Which protocol permits secure polling network devices?

SNMPv3

89

Which is a topology used in networks for its scalability?

Star

90

What is part of the IP suite and is used to monitor network-managed devices?

SNMP

92

A technician is extending a data circuit to the other side of the building. What would the technician set up at the new location?

IDF

93

Among the encryption protocols that the DoD says are unbreakable, which is the best?

AES

94

What encryption protocol or standard allows you to create a virtual subnet on an intranet?

SSL VPN

95

Which user-authentication method uses a public key and private key pair?

PKI

96

True/False: RIPv2 is a hybrid routing protocol.

FALSE

97

True/False: RIPv1 is a link state routing protocol.

FALSE

98

Which two software types would be used for identifying an attack?

IDS and IPS

99

A client purchases a new wireless printer and wants to be able to bond it their PDA. What is the name of the technology that describes the type of wireless printer that was purchased?

Bluetooth

100

True/False: Internet Protocol version 6 (IPv6) uses 128-bit addresses.

TRUE

101

A technician has just finished implementing a solution for a network issue. What steps in should the technician do next?

Document the issue and the solution that was implemented.

102

True/False: A denial of service (DoS) attack is meant to prevent users from accessing a system.

TRUE

103

True/False: IP spoofing is the process of sending a packet with a fake source address, pretending that the packet is coming from within the network the hacker is trying to attack.

TRUE

104

Which routing protocols uses AS-Path as one of the methods to build the routing table?

BGP

105

A technician is troubleshooting a switch and has identified the symptoms. What step should the technician take next?

Escalate the issue.

106

What kind of tool could a hacker use to intercept traffic on your network?

Packet sniffer

107

Remote users are having problems accessing files from a file server. Which should a technician check first?

Connectivity

108

Which type of virus attacks executable application and system program files?

File virus

109

Which monitoring software is used to view a network at the frame level?

Packet sniffer

110

A technician needs to test a wire that is in the wall. What is the best way for the technician to identify the wire's location?

Use a tone generator

111

What devices allow segregation of collision domains but not broadcasting domains?

Switches

112

What is the maximum transmission distance of 10GBaseLR?

6 miles

113

In which layer of the OSI model does IPSec operate?

Network (Layer 3)

114

What tool would be used to test the break in a fiber connection on the network?

OTDR

115

True/False: A rogue access point is where a switch has been installed on a network without the administrator's knowledge.

False. Where an AP has been installed without permission.

116

True/False: Phishing/social engineering refers to the act of attempting to illegally obtain sensitive information by pretending to be a credible source.

TRUE

117

What are the three main types of intruder detection and defense?

Active detection, passive detection, proactive defense

118

What defines how security will be implemented in an organization, including physical security, document security, and network security?

Security policy

119

What authentication method allows for domain-level authentication on a wireless network?

RADIUS

120

A company is in the process of upgrading its network infrastructure to support new VoIP telephony equipment. What is a primary feature to consider when selecting a new switch to support the phones?

PoE

121

True/False: A security procedure defines the appropriate response to a security event on your network.

TRUE

122

What are the three primary LAN topologies?

Bus, ring, and star, but we only use bus in today's LANs.

123

What common WAN topology often results in multiple connections to a single site, leading to a high degree of fault tolerance?

Mesh

124

What is the term for a device that shares its resources with other network devices?

Server

125

What network model draws a clear distinction between devices that share their resources and devices that do not?

Client-server

126

Which network topology or connection type can be implemented with only two endpoints?

Point-to-point

127

Will a computer that shares no resources most likely be connected to the backbone or to a segment?

Segment

128

Which LAN topology is characterized by all devices being daisy-chained together with the devices at each end being connected to only one other device?

Bus

129

True/False: RIP is a vendor-neutral routing protocol that uses very little bandwidth but a lot of memory on a router.

False. Yes, RIP is vendor neutral, but it uses little router processing and a lot of bandwidth to do its job.

130

True/False: OSPF is a hybrid routing protocol.

FALSE

131

True/False: EIGRP is used to update the ARP tables on a router.

FALSE

132

What does the acronym ICMP stand for?

Internet Control Message Protocol

133

True/False: EIGRP is a classful routing protocol.

FALSE

134

True/False: EIGRP has no version that supports IPv6.

FALSE

135

True/False: OSPF is a link state protocol that supports VLSM and classless routing.

TRUE

136

True/False: RIPv1 is a distance vector protocol that does not support VLSM and supports only classful routing.

TRUE

137

What does the acronym IS-IS stand for?

Intermediate System-to-Intermediate System

138

What does the acronym IDS stand for?

Intrusion detection system

139

What WAN protocol is described as residing in Layer 2.5 of the OSI model?

MPLS

140

True/False: If you can ping a host, this does not mean you can access its services.

TRUE

142

What is another name for the Media Access Control (MAC) address?

Physical address or hardware address

143

Which LAN connection technology has a full-duplex speed of 200Mbps and uses a Cat 5e cable?

100BaseT

144

What is the Internet Protocol version 4 (IPv4) loopback address?

127.0.0.1

145

An Ethernet Media Access Control (MAC) address consists of how many bits?

48

146

True/False: EIGRP uses hop count as a metric to determine the best path to a remote network.

FALSE

147

Why would you use dynamic routing over static routing?

It updates the routing table automatically and scales to large networks.

148

True/False: OSPF can be used only on Cisco routers.

FALSE

149

True/False: DSL is used to connect hosts to an Ethernet hub.

FALSE

150

True/False: SDSL means that your download and upload speeds on the line are different.

TRUE

151

True/False: A link light is the small, usually red, LED on the back of a network card.

FALSE

152

True/False: ADSL means that the uplink and download speeds of a DSL link are the same.

TRUE