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Comptia Net+ > Study Cards > Flashcards

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1
Q

The length of time a computer is allowed to use a dynamic Internet Protocol (IP) address provided by a DHCP server is known as the ________.

A

Lease Time

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2
Q

True/False: A Network collision happens when two devices attempt to communicate on the same physical segment at the same time.

A

True

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3
Q

True/False: A Firewall can permit, deny, encrypt, decrypt and proxy all computer traffic that flows through it.

A

True

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4
Q

True/False: Firewalls are not usually a combination of hardware and software.

A

False

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5
Q

Which type of security device or software employs a redirection device known as a honeypot.

A

IPS (Intrusion Prevention System)

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6
Q

Which Type of firewall keeps track of existing connections passing through it?

A

Stateful

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7
Q

If you wanted to ensure that your firewall could block inflammatory email, which type of service would you look for?

A

Content Filtering

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8
Q

What is a firewall’s list of rules, which it uses to block traffic?

A

Access Control list (ACL)

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9
Q

If you want to allow remote access to 500 users, which type of device is recommended?

A

VPN Concertrator

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10
Q

What is a security zone that allows public traffic but is isolated from the private network called?

A

DMZ

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11
Q

Which unsecure protocol uses port 80 by default?

A

HTTP

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12
Q

What is 192.168 in Binary?

A

1100000.1010100

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13
Q

What port number does Secure Shell (SSH) use by default?

A

22

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14
Q

Logging, notification, and shunning are what types of reactions from type of security device?

A

Passive reactions from an IDS

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15
Q

True/False: A demilitarized zone (DMZ) is a network segment that is neither public nor local but halfway between.

A

True

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16
Q

You add a new cable to your network. What document do you update?

A

Wiring schematics

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17
Q

True/False: An intrusion detection system replaces a firewall on your network.

A

False

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18
Q

True/False: An intrusion detection system (IDS) can detect within encrypted traffic.

A

False

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19
Q

An Intrusion detection system (IDS) monitors network traffic, looking for signs of an intrusion.

A

True

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21
Q

192.168.10.28/28 is an example of which kind of notation?

A

CIDR

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22
Q

Which terminal emulation program is insecure because it does not encrypt any data including usernames and passwords?

A

Telnet

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23
Q

Which network topology has the most physical connections per host, which means it will have the least collisions?

A

Mesh

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24
Q

In a Class C Address, a network ID is how man bits?

A

24

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25
Q

100BaseTF uses what type of cable medium?

A

Ethernet over Fiber

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26
True/False: A multimode fiber-optic cable (MMF) is terminated on a punch-down block?
False
27
A UTP cable running 1000Mbps can be a maximum distance of ________.
100 Meters
28
How can you verify that your DMZ is allowing TCP ports through?
Telnet to the ports in question on the DMZ server.
29
True/False: A parabolic is a type of omnidirectional antenna.
False
30
True/False: A dipole is an omnidirectional antenna.
True
32
A network administrator is going to implement a packet filter on a network for Internet connections. What port must be allowed through the firewall for users to connect to secure websites?
443
33
What protocol is used within a ping command?
ICMP
34
True/False: A repeater can be used to cache web pages for future retrieval.
False
35
True/False: A proxy service can be used to cache web pages for future retrieval.
True
36
What device can measure the time a signal goes down and back on a cable?
TDR
37
What device connects a local area network (LAN) to a T1 circuit?
Channel service unit/data service unit (CSU/DSU)
38
A OTDR is used to test what?
Fiber
39
When all routers in an autonomous system agree about the path from one point to another, the network is said to be what?
Converged
40
Which two protocols allow secure access to a VPN?
PPTP and IPSec
41
What tool is used to connect an RJ-45 to a UTP?
Crimped
42
What wire pairs connect to a 66 block from the telecommunication company?
25 pair
43
Implementing policies and procedures that define how corporate information is kept confidential and training on these procedures can help prevent what?
Social engineering
44
At what layer of the Open Systems Interconnect (OSI) model does a router function?
Network, Layer 3
45
Which TCP/IP well-known port number identifies Simple Mail Transfer Protocol (SMTP)?
25
46
Which routing protocol uses a next hop as a metric in deciding how to route traffic?
RIP
47
True/False: 156.144.226.123 is a valid IP Address?
True
48
Which device monitors inbound and outbound network connections in order to identify suspicious activity?
IDS
49
True/False: The Transport Layer converts digital data into electronic signals to be put on a wire?
False
50
Which two commands can you type to see the DNS servers that your computer is using?
ipconfig and nslookup
51
True/False: Internet Protocol Security (IPSec) encrypts data between web browsers and web servers.
False
52
Which device or software can identify and react to an attack by shutting down a port or dropping certain type of packets?
IPS
53
True/False: Using Domain Name Service (DNS) will segment a network.
False
54
True/False: TCP is connection-oriented and UDP is unreliable.
True
55
When configuring a wireless access point, what should you considering when selecting a channel?
Select a channel farthest from that of any other AP in the area.
56
What does SNMP provide?
Automated alerts and reports on network devices.
57
Your boss tells you to block certain ports on your firewall. What documentation do you need to update.
Policies, Procedures, and configurations
58
You need to provide inter-VLAN communications. what device do you need?
A Layer 3 Switch (ROuter)
59
True/False: Antivirus (AV) software will help protect a computer from hackers.
False
60
True/False: Antivirus (AV) software will help protect a computer from Trojan horses.
True
61
A packet-filtering firewall operates at which of the OSI Model?
Transport and Network
62
True/False: A Packet-filtering firewall operates at the Network and Data Link layers of the OSE Model.
False
63
Which networking topology connects computers via a central device?
Star
64
True/False: A Ring networking topology connects computers via a central hub.
False
65
True/False: A cable modem selectively forwards data packets.
False
66
True/False: A bridge can selective forward data packets.
True
67
True/False: A Bridge is a network device that operates at Layer 2 of the OSI model.
True
68
True/False: A switch is a network device that operates at the Layer 2 of the OSI model.
True
69
True/False: A hub and a repeater operate at Layer 2 of the OSI Model.
False
70
True/False: A Hub and a Switch operate at the same layer of the OSI Model.
False
71
True/False: A router and a bridge operate at the same layer of the OSI Model.
False
72
What is 0110001.00011010 in decimal?
99.26
73
A company wants to have intranet. Where would the intranet web server be located in the network?
In the local area network (LAN), usually behind the wire wall to the WAN.
74
True/False: A networking administrator wants all computers protected from Trojan horses and worms. Implementing a firewall will accomplish this requirement.
False
75
True/False: A Hub and a router operate at the same layer of the OSI model.
False
76
HTTPS uses what TCP destination port number?
443
77
True/False: Virtual local area networks (VLANS) create collision domains.
False

Comptia Net+ (4 decks)

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