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Net+ Review Flashcards

1
Q

Class and IP address ranges

A

Class A: 0-127
Class B: 128-191
Class C: 192-223
Class D: 224-239

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2
Q

Private address ranges:

A

Class A private 10.0.0.0 - 10.255.255.255
Class B private 172.16.0.0 - 172.31.255.255
Class C private: 192.168.0.0 - 192.168.255.255

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3
Q

TACACS+ does what and uses what port?

A

Uses TCP to perform AAA functions (Authentication, Authorization, Accounting) uses port 49

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4
Q

RADIUS does what and uses what port?

A

Uses UDP to perform centralized AAA (Remote Authentication Dial In User Service) Ports 1812 & 1813

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5
Q

What is RAS

A

Remote Access Server: remote gateway server provides access to a LAN

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6
Q

What is 802.11 wireless standard 802.11b

A

2.4 GHz
11 Mbps
~300’

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7
Q

What is 802.11 wireless standard 802.11a

A

5.4 GHz
54 Mbps
~150’

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8
Q

What is 802.11 wireless standard 802.11g

A

2.4 GHz
54 Mbps
~300’

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9
Q

What is 802.11 wireless standard 802.11n

A

2.4 GHz
100+ Mbps
~300’’

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10
Q

What is 802.11 wireless standard 802.11ac

A

5 GHz
Up to 1Gbps
~300’’

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11
Q

POP email protocol

A

Receive email;
moves email to device;
port 110

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12
Q

IMAP email protocol

A

Receive email;
syncs with mail server;
port 143

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13
Q

SMPT

A

Sends email;
email remains on server;
port 25

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14
Q

ISDN speed and distance

A

64 kbps & 128 kbps;

Distance 18,000 feet

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15
Q

10BaseT cable type, speed and distance -

A

Copper;
10 Mbps;
100 meters

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16
Q

100BaseT cable type, speed and distance

A

Copper;
100 Mbps;
100 meters

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17
Q

100BaseFX cable type speed and distance

A

Fiber;
100Mbps;
2 Kilometers

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18
Q

1000BaseT cable type speed and distance

A

Copper;
GB Ethernet;
100 meters

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19
Q

1000BaseLX cable type speed and distance

A

Fiber;
GB Ethernet;
5 Kilometers

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20
Q

1000BaseSX cable type speed and distance

A

Fiber - multimode;
GB Ethernet;
220-500 meters

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21
Q

10GbaseT cable type speed and distance

A

Copper;
10 GB;
55 meters

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22
Q

Port 20

A

FTP

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23
Q

Port 21

A

FTP

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24
Q

Port 22

A

SSH

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25
Port 23
telnet
26
Port 25
SMTP
27
Port 53
DNS
28
Port 67/68
DHCP
29
Port 69
TFTP
30
Port 80
HTTP
31
Port 110
POP
32
Port 137
NETBIOS
33
Port 138
NETBIOS
34
Port 143
IMAP
35
Port 161
SNMP
36
Port 443
HTTPS
37
Port 3389
RDP
38
Port 5060
SIP
39
What tool is used for testing telephone lines?
BUTT set
40
Name two mail server records
A and MX
41
What is "AAAA" ?
A type of DNS record used by IPv6
42
PKI authentication uses what type of keys for verification?
Both public and private keys for authentication verification are used
43
Hashes perform what function?
Verify data integrity
44
WAN - T1 channels and speed
24 channels; | 1.544 Mbps
45
WAN - T3 channels and speed
672 channes; | 45 Mbps
46
WAN - E1 channels and speed
32 channels; | 2.04Mbps
47
WAN - E3 channels and speed
512 channels; | 34 Mbps
48
WAN - Oc-1 channels and speed
channels | 51.8 Mbps
49
What is MPLS used for?
Labeling packets for rerouting purposes; | Replaces ATM and frame relay
50
nbstat
Used for troubleshooting NETBIOS name resolution problems... WINS issues;
51
WINS
Windows Internet Name Service; | Enable Windows to resolve NetBIOS host names to IP addresses… similar to DNS
52
What are methods for encapsulating data over VPN connections?
SSL: Secure Socket Layer… secures connections between web clients and web servers over insecure network; IPSec: Internet Protocol Security… protects communications over the internet; PPTP: Point to Point Tunneling Protocol...old method for VPN implementation
53
What is RAS
Remote Access Server dial up service connects remote users to internal LAN
54
Name one each authentication service for a wired and a wireless network
EAP - Extensible Authentication Protocol… mainly for wireless authentication; Kerberos - authentication service geared toward wired networks
55
What is AES?
Advanced Encryption Standard
56
What is TKIP?
Temporary Key Integrity Protocol; | Encryption that was replaced by WPA2
57
Spanning Tree Protocol
Prevents broadcast storms and bridge loops; | Used by switches at Layer 2
58
MDIX port on switch
Enables connection between like devices
59
Physical OSI layer
sending/receiving signals; Ethernet frames contain destination
60
Data Link OSI layer
MAC addresses
61
Network OSI layer
IP address
62
Transport OSI layer
assembly of and sequencing of data; error checking
63
Session OSI layer
keeping track of sessions
64
Presentation OSI layer
converting info to or from apps
65
SFP
Small Form factor Pluggable; | Plugs into SFP port on switch and connects to fibre channel and GB Ethernet cables
66
SFP
Small Form factor Pluggable; | Plugs into SFP port on switch and connects to fiber channel and GB Ethernet cables
67
Ethernet frame contains what?
Contains Destination and Source MAC addresses and Ethertype fields; Data link layer 2
68
IP packet contains what?
Source and destination IP addresses
69
Ethernet type indicates what?
Indicates which protocol is encapsulated in frame and helps receiving computer interpret frame content
70
RIP
``` Routing Information Protocol; Max 15 hop count; Distance vector; Interior gateway; Finds best route over network ```
71
WPS
WiFi Protected Setup; | Allows users to easily secure wireless network
72
NAS
Network Access Storage: Single box storage; Uses file sharing protocol like SAMBA
73
SAN
Storage Access Network Block level storage with one or many boxes; Uses iSCSI and Fiber Channel protocols
74
PPTP
Point to Point Tunneling Protocol; Used to connect to a VPN; Uses port 1723

A+ Review (9 decks)

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