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Networking Flashcards

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1
Q

What port is DNS?

A

53

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2
Q

As packets traverse a network, each router is known as a “ “?

A

Hop

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3
Q

What do you use to create VLANs?

A

Layer 3 Switches

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4
Q

What layer of the OSI do MAC addresses and switches use?

A

Data Link

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5
Q

Which of the following are fiber connectors?

a. FC
b. LC
c. MT-RJ
d. RJ-45

A

a. FC
b. LJ
c. MT-RJ

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6
Q

X.25 was replaced with “ “?

A

Frame Relay

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7
Q

What model uses a centralized database for authentication?

A

Client/Server

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8
Q

Which protocol automatically assigns IP configurations to clients?

A

DHCP

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9
Q

Well known ports are between “ “?

A

0-1023

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10
Q

What command shows you the MAC address on a NIC?

A

ipconfig/all

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11
Q

What kind of network enables people outside of the company to access specific resources but not everyone on the Internet?

A

Extranet

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12
Q

What device is used as a high speed modem for a LAN?

A

CSU/DSU

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13
Q

What IPv4 class is used for multi-casting?

A

Class D

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14
Q

What layer includes cables and network adapters?

A

Physical

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15
Q

Which layer of the OSI model is included in the TCP/IP model?

A

Transport

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16
Q

What is an advantage of single-mode fiber?

A

Longer distances for transmissions vs. multi-mode

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17
Q

Which of the following enables a Windows Server to act as a router?

a. DHCP
b. IP Forwarding
c. RDP
d. RDC

A

IP Forwarding

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18
Q

What model is used to describe how data communication occurs between hosts/ two computers?

A

OSI

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19
Q

What is the most common type of cable used today?

A

UTP

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20
Q

For a cross-over cable, if one end is 568A the other end should be “ “?

A

568B

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21
Q

What command enables you to display and modify network configurations on a local computer?

A

Netsh

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22
Q

What speed does T1 run at?

A

1.544 Mbps

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23
Q

Which command would you use to test a computers TCP/IP stack?

A

Ping 127.0.0.1

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24
Q

What type of server is used to translate host names to IPs?

A

DNS

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25
List the 4 steps of a client acquiring an IP from a DHCP server.
Discovery, Offering, Request, Acknowledge
26
What type of address uses 169.254.32.22?
APIPA
27
What type of address is used to send a single set of packets to multiple hosts?
Multicast
28
Which area defines where the responsibility of a network admin ends and the telecommunications provider takes ownership?
Demarc
29
What type of firewall blocks packets based on port numbers that are closed or IP addresses that are not allowed?
Packet Filter
30
Which VPN technology is the easiest to setup and most commonly used and has the least security?
PPTP
31
A " " is a single device or computer that connects to a TCP/IP network?
Host & Node
32
This IPSec component has the highest security?
ESP
33
This type of route never changes and must be defined on the router?
Static
34
What layer of the OSI model enables connections to be created so that a host can begin transferring files?
Session
35
When you are assigned a 169.21.43.11 address, what could be the issue?
Not able to find DHCP server
36
L2TP is used with what protocol for encrypting data?
IPSec
37
I want to ping a computer constantly, which command should I use?
Ping -t
38
Which command displays Ethernet stats such as the number of packets sent and received?
Netstat -e
39
A host with a 180.24.45.120 is from what class?
Class B
40
What is the min category cable used for 100 Mbps?
CAT5
41
Why is UDP preferred over TCP for video?
Less overhead = faster performance
42
What defines the nearest router for a host?
Default gateway
43
What layer of the OSI involves encrypting data?
Presentation
44
Max speed supported by 802.11b?
11 Mbps
45
You pick up your wireless phone and your wifi connection drops, what is the cause?
RFI
46
When running UTP cable through/ near heavy machinery, you should use?
STP
47
Which of the following utilizes wires from a telephone company to provide Internet access? a. DSL b. Cable c. 4GTE d. FDDI
DSL
48
DS0 runs at what speed?
64 Kbps
49
In Europe, T1 is similar to " "?
E1
50
What port does DHCP use?
67
51
What do you use to isolate a group of computers within an organization?
VLAN
52
What type of authentication is used for for enterprise networks?
802.1x
53
TCP/IP and IPX/SPX are what type of stacks?
Protocols
54
Which protocol is connectionless and has faster performance?
UDP
55
What port does L2TP use?
1701
56
What is the default subnet mask for a class B network?
255.255.0.0
57
How many layers does the TCP/IP model have?
4
58
What would be used to host/ publish a webstore or a website for a computer?
DMZ
59
Multimode fiber is different from single mode fiber because " "?
It uses multiple beams of light
60
Subnet mask of 255.255.240.0 is which of the following CIDR notations?
/20
61
Which of the following caches Internet traffic for quicker access and also acts as the middleman?
Proxy server
62
What is the most common central device used today to connect computers on a network?
Switch
63
To test a cable you would use a " "?
Continuity tester
64
What is the maximum number of hosts you can use for a class C subnet?
254
65
What port is HTTP?
80
66
What command enables you to add static routes to a windows PC?
Route
67
What routing protocol is most commonly used to determine best routes within a network and also utilizes a distance-vector routing algorithm?
RIP
68
What is the most common adapter or connector used to connect a computer to a wired network?
RJ45
69
What protocol does ping use?
ICMP
70
Max speed supported by 802.11g " "?
54 Mbps
71
What type of IP address is assigned by a DHCP server?
Dynamic
72
What ports are defined above 49,152?
Dynamic
73
What mode uses a wireless access point?
Ad Hoc Mode
74
What does TTL stand for?
Time To Live
75
What protocol is used to translate IP addresses to MAC addresses?
ARP
76
Which of the following is a loopback address? a. 127.0.0.1 b. Loopback c. Home d. Host
a. 127.0.0.1 | b. Loopback
77
What speed does FDDI use?
100 Mbps
78
Which device checks for malicious activity on a network and only reports it?
NIDS
79
What describes CSMA/CD?
802.3
80
What command would you use to check to see which TCP/ UDP connections are open/active?
Netstat
81
What command enables you to connect to a remote computer and execute commands on the command line?
Telnet
82
What command shows you ping response times and also each hop a packet takes as it traverses a network?
Tracert
83
Why is X.25 no longer used?
It's really slow
84
A DMZ is also known as what?
Perimeter network
85
Which would you use to block access to specific websites?
Internet Content a Filter
86
What layer compresses data such as video formats?
Presentation
87
Which commands do you use to test TCP/IP stack on a computer?
Ping localhost Ping 127.0.0.1 Ping loopback
88
What protocol would be appropriate for transferring/ hosting video?
UDP
89
What is the equivalent of terminal services used in Windows Server 2008 R2?
Remote Desktop Services
90
What would you use to create VPN tunnels through Windows Server 2008 R2?
Microsoft RRAS
91
What component of IPSec enables encryption and authentication?
SA
92
What encryption type is most secure?
WPA2
93
Which of the following enables one to utilize a computer as if they were on a corporate network despite being on the Internet and not in the office?
VPN
94
What layer of the OSI model is responsible for logging on and off?
Session
95
What type of server does active directory run on?
Network Controller
96
How many bits are in an IPv6 address?
128
97
What command enables you to update the assigned DHCP configuration?
ipconfig/renew
98
What is used to remap private IP addresses and public addresses to each other?
NAT
99
When connecting a cable to a patch panel you must use a what?
Punch Down Tool

Networking Fundamentals (4 decks)

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