CCNA EXAM

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EXAM

461 Terms

1
What is the IEEE of Bluetooth?
802.15 WPAN
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2
What is WiMAX and it IEEE?
-Worldwide Interoperability for Microwave Access
-IEEE 802.16 WWAN
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3
In cellular broadband there are two types of cellular networks, what are they?
Global System for Mobile (GSM) and Code Division Multiple Access (CDMA).
GSM is internationally recognized, while CDMA is primarily used in the US.
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4
Typically, it is used by rural homeowners and businesses where cable and DSL are not available. It is usually more expensive and requires a clear line of sight.
Satellite Broadband
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5
What is the 802.11 WLAN?
WiFi/wireless devices are based on IEEE 802.11
set of protocols and wireless local area network (WLAN) Wi-Fi computer communication in various frequencies
-Radio frequency is 2.4 GHz
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6
What is the 802.11a?
5 Ghz frequency band
IEEE standard for transmitting data over a wireless network.
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7
What are the two allocated radio frequency in 802.11 wireless LANs?
2.4GHz and 5GHz
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8
Which 802.11 standards exclusively use the 5 GHz radio frequency?
802.11a
802.11ac
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9
Which of the wireless networks typically uses lower powered transmitters for short ranges?
WPAN
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10
In wireless, what does AP stand for?
Access Point
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11
What does SSID stand for?
shared service set identifier (SSID)
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12
The wireless router advertises its wireless services by sending \______________containing its shared service set identifier (SSID)
Beacons
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13
What does QoS stand for and what does it do?
Quality of Service
is a feature of routers and switches which prioritizes traffic so that more important traffic can pass first.
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14
What does WAP stand for and what is it exactly?
Wireless Access Point
more generally just an access point, is a networking hardware devices that allows other Wi-Fi devices to connect to a wired network.
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15
What does Wi-Fi stand for?
Wireless Fidelity
technically, this is not the case. Wi-Fi is simply a trademarked term meaning IEEE 802.11x.
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16
What is an Autonomous AP?
-Standalone devices like a home router. Where the entire WLAN configuration resides on the device.
-Sometimes called thick APs
-do not require a controller to control the AP and it use WLSE for management software
-use for a network that requires only a couple of access points.
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17
What does WLC stand for?
Wireless LAN Controller
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18
What does AS stand for?
Autonomous System
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19
What are Controller-based APs?
-These devices require no initial configuration and are often called lightweight APs (LAPs).
-Also called thin APs
-Centralized management, configuration, encryption, updates and policy settings through a centralized controller
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20
LAPs
Lightweight Access Points
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21
LWAPP
Light Weight Access Point Protocol
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22
What is another name for LAPs?
Controller-based APs
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23
LAG
Link Aggregation Group
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24
What is MIMO?
Multiple Input Multiple Output.
Uses multiple antennas to increase available bandwidth for IEEE 802.11n/ac/ax wireless networks. Up to eight transmit and receive antennas can be used to increase throughput.
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25
Which of the following components are integrated in a wireless home router?
-Access Point
-Switch
-Router
-Range Extender
Access Point, Switch, Router
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26
What is infrastructure mode in WLAN?
A wireless router or AP connects wireless clients to a wired distribution system.
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27
What is API and what does the acronym stand for as well?
Application Programming Interface (API)
An API is software that allows other applications to access its data or services. It is a set of rules describing how one application can interact with another, and the instructions to allow the interaction to occur.
Data formats shared between smart devices often use an Application Programming Interface (API
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28
There are four types of web service APIs
Simple Object Access Protocol (SOAP)
Representational State Transfer (REST)
eXtensible Markup Language-Remote Procedure Call (XML-RPC)
JavaScript Object Notation-Remote Procedure Call (JSON-RPC)
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29
Software-Defined Networking (SDN) is what?
The physical separation of the network control plane from the forwarding plane, and where a control plane controls several devices.
dynamic, manageable, cost-effective, and adaptable
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30
What is FTP and it port number?
File Transfer Protocol
Port 20, 21
Provides reliability when loading an IOS image upon boot up
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31
What is SSH and it port number?
Secure Shell Protocol
port 22
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32
What is telnet port number?
23
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33
SMTP (Simple Mail Transfer Protocol) and port number
port 25
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34
DNS (Domain Name System) port number
53
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35
HTTP (Hypertext Transfer Protocol) port number
80
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36
SNMP (Simple Network Management Protocol) port number
161
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37
What portocols are reliable, connection oriented and use TCP?
FTP, SSH, Telnet, SMTP, DNS, HTTP, POP3, NTP, IMAP4, HTTPS
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38
What protocols are unreliable, connectionless and use UDP?
DNS, DHCP, TFTP, SNMP
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39
What is DHCP?
A protocol used to automate the assignment of IP Address. It stands for Dynamic Host Control Protocol and is the successor to BOOTP.
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40
DHCP port number
67
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41
What is HSRP?
HSRP stands for Hot Standby Router Protocol, it was designed for gateway redundancy without addition config on end devices. Routers configured with HSRP present themselves as a single virtual default gateway.
-It is Cisco Proprietary
-has one active router and one standby router
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42
What does VRRP stand for?
Virtual Router Redundancy Protocol
Has one master router and multiple backup routers
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43
What is VRRP virtual MAC address?
0000.5E00.01xx
0000.5E00.01xx, where xx is the value ID for the VRRP group number
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44
What is FHRP?
First-Hop Redundancy Protocol
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45
In show ip route command, what letter represents EIGRP?
D
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46
In show ip route command, what letter represents OSPF?
O
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47
In show ip route command, what letter represents directly connected routes?
C
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48
In show ip route command, what letter represents static route?
S
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49
In show ip route command, what letter/symbol represents default routes?
*
on a route such as S * 0.0.0.0/0
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50
In show ip route command, what letter represents local/host connected directly connected?
L
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51
What is PAgP?
Port Aggregation Protocol
is a Cisco proprietary link aggregator protocol that can bundle up to 8 active ports.
-Only uses DESIRABLE and AUTO modes
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52
By default the maximum time that a Cisco switch will retain LLDP info before discarding it when it is enabled on an interface is \______
120 seconds
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53
By default, a cisco switch will send LLDP advertisements every \____ seconds when LLDP is enabled on an interface
30
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54
What is LLDP on a Cisco switch?
Link Layer Discovery Protocol.
OSI layer 2 open standard discovery protocol that is used to facilitate interoperability between Cisco devices and non-Cisco devices. Attributes that can be learned from neighboring devices contain Type, Length, Value (TLV) info including port description, system description and management address.
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55
What is VTP?
VLAN Trunking Protocol (VTP)
is a Layer 2 messaging protocol that maintains VLAN configuration consistency throughout a common administrative domain by managing VLAN additions, deletions, and name changes across multiple switches. Without VTP, you would have to manually add VLAN information to each switch in the network.
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56
What is CDP?
Cisco Discovery Protocol (CDP)
is a Cisco Proprietary feature that allows you to see directly connected Cisco devices. CDP can provide VLAN Trunking Protocol (VTP) information whereas LLDP does not.
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57
What is FlexConnect?
Software basically.
(previously known as Hybrid Remote Edge Access Point or H-REAP) is a wireless solution for branch office and remote office deployments. It enables customers to configure and control access points (AP) in a branch or remote office from the corporate office through a wide area network (WAN) link without deploying a controller in each office. The FlexConnect access points can switch client data traffic locally and perform client authentication locally when their connection to the controller is lost. When they are connected to the controller, they can also send traffic back to the controller. In the connected mode, the FlexConnect access point can also perform local authentication.
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58
Number of host on a /24 and it subnet mask
256
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59
255.255.255.0
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60
Number of host on a /23 and it subnet mask
512
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61
255.255.254.0
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62
Host on a /22 and it subnet mask
1024
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63
255.255.252.0
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64
Host on a /21 and it subnet mask
2048
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65
255.255.248.0
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66
Host on a /19 and it subnet mask
8192
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67
255.255.224.0
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68
Host on a /18 and it subnet mask
16384
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69
255.255.192.0
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70
Host on a /25 and it subnet mask
128
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71
255.255.255.128
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72
Host on a /26 and it subnet mask
64
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73
255.255.255.192
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74
Host on a /27 and it subnet mask
32
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75
255.255.255.224
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76
Host on a /28 and it subnet mask
16
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77
255.255.255.240
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78
Host on a /29 and it subnet mask
8
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79
255.255.255.248
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80
Host on a /30 and it subnet mask
4
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81
255.255.255.252
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82
Host on a /31 and it subnet mask
2
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83
255.255.255.254
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84
Host on a /32 and it subnet mask
1
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85
255.255.255.255
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86
Host on a /17 and it subnet mask
32768
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87
255.255.128.0
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88
Host on a /16 and it subnet mask
65536
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89
255.255.0.0
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90
What is the reserved ranges on RFC 1918?
10.0.0.0-10.255.255.255
172.16.0.0-172.31.255.255
192.168.0.0-192.168.255.255
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91
What is the reserved range for loopback addresses?
127.0.0.0-127.255.255.255
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92
What is the Class A range of addresses?
10.0.0.0 - 10.255.255.255
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93
What is the Class B range of addresses?
172.16.0.0 - 172.31.255.255
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94
What is the Class C range of addresses?
192.168.0.0 - 192.168.255.255
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95
What do unique local IPv6 unicast prefix always begin with?
FD or FC
Because the first 7 bits of a unique local unicast address are always 1111110
They can not be aggregatable nor summarized.
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96
What is the address range if a host IP can not obtain a network address via DHCP?
169.254.1.0 to 169.254.254.255
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97
What protocol uses UDP and TCP?
DNS (Domain Name System)
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98
IPv6 multicast address?
FF00::/8
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99
IPv6 Unicast Link-Local address
FF80::/10
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100
Link local addresses are unicast addresses used for communication over a \__________ link
single
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