Ccent

Front 1

RFC stands for

Back 1

Request for Comment

Front 2

Bits in an IPv4 Address

Back 2

32-bits

Front 3

Bits in an IPv4 Octet

Back 3

8-bits

Front 4

How many Octets are there in an IPv4 address

Back 4

4

Front 5

Class A bit pattern

Back 5

0nnnnnnn

Front 6

Class B bit pattern

Back 6

10nnnnnn

Front 7

Class C bit pattern

Back 7

110nnnnn

Front 8

Class A Network Address Range

Back 8

1-126

Front 9

Class B Network Address Range

Back 9

128-191

Front 10

Class C Network Address Range

Back 10

192-223

Front 11

Binary 00000000

Back 11

0

Front 12

Binary 10000000

Back 12

128

Front 13

Binary 11000000

Back 13

192

Front 14

Binary 11100000

Back 14

224

Front 15

Binary 11110000

Back 15

240

Front 16

Binary 11111000

Back 16

248

Front 17

Binary 11111100

Back 17

252

Front 18

Binary 11111110

Back 18

254

Front 19

Binary 11111111

Back 19

255

Front 20

1 Subnet Bit has dotted decimal of

Back 20

128

Front 21

2 Subnet Bits have a dotted decimal of

Back 21

192

Front 22

3 Subnet Bits have a dotted decimal of

Back 22

224

Front 23

4 Subnet Bits have a dotted decimal of

Back 23

240

Front 24

5 Subnet Bits have a dotted decimal of

Back 24

248

Front 25

6 Subnet Bits have a dotted decimal of

Back 25

252

Front 26

7 Subnet Bits have a dotted decimal of

Back 26

254

Front 27

8 Subnet Bits have a dotted decimal of

Back 27

255

Front 28

Class A: Network Bits

Back 28

8

Front 29

Class A: Host Bits

Back 29

24

Front 30

Class A: Total networks

Back 30

127

Front 31

Class A: Addresses per Network

Back 31

16,777,216

Front 32

Class B: Network bits

Back 32

16

Front 33

Class B: Host bits

Back 33

16

Front 34

Class B: Total Networks

Back 34

16,384

Front 35

Class B: Addresses per Network

Back 35

65,536

Front 36

Class C: Network bits

Back 36

24

Front 37

Class C: Hosts Bits

Back 37

8

Front 38

Class C: Total Networks

Back 38

2,097,152

Front 39

Class C: Addresses per Network

Back 39

256

Front 40

What is IP Subnet Zero

Back 40

The subnet with all zeros that correspond to the mask (i.e 255.255.255.0 192.168.0.0)

Front 41

Formula to calculate Subnets (no ip subnet zero)

Back 41

Front 42

Formula to calculate Subnets (with ip subnet zero)

Back 42

Front 43

Formula to calculate the number of hosts per subnet

Back 43

Front 44

What is a host?

Back 44

Any device that is able to be assigned an IP Address

Front 45

Which routing protocols require fixed length subnet masks

Back 45

RIP (Version 1) & IGRP (Interior Gateway Routing Protocol)

Front 46

Which routing protocols do not required a fixed length subnet mask

Back 46

RIP (Version 2), OSPF (Open Shortest Path First) and EIGRP (Enhanced Interior Gateway Routing Protocol)

Front 47

Application Layer #

Back 47

Layer 7

Front 48

Presentation Layer #

Back 48

Layer 6

Front 49

How many layers OSI model

Back 49

7

Front 50

How many layers in the TCP/IP (DOD Model)

Back 50

4

Front 51

Session Layer #

Back 51

5

Front 52

Transport Layer #

Back 52

4

Front 53

Network Layer #

Back 53

3

Front 54

Data-Link Layer #

Back 54

2

Front 55

Physical Layer #

Back 55

1

Front 56

What are the 4 fields of a frame?

Back 56

Destinate MAC

Source MAC

Type

FCS

Front 57

Size of the data field for a frame? (min & max)

Back 57

Minimum: 46 bytes

Maximum: 1500 bytes

Front 58

How many bytes does a Layer 2 frame add to the L3PDU?

Back 58

18 bytes

Front 59

10 Mbps common name?

Back 59

Ethernet

Front 60

100 Mbps common name?

Back 60

Fast Ethernet

Front 61

1000 Mbps common name?

Back 61

Gigabit Ethernet

Front 62

Maximum distance for UTP Ethernet, Fast Ethernet & Gigabit Ethernet?

Back 62

100 m

Front 63

Field that CISCO added to HDLC?

Back 63

Type

Front 64

IEEE standard HDLC headers?

Back 64

Flag, Address, Control & FCS

Front 65

Field of the TCP header that controls flow?

Back 65

Window

Front 66

Fields of the TCP header that deal with guarteed delivery?

Back 66

Sequence & Acknolwedge

Front 67

Process used to establish a TCP connection called?

Back 67

TCP Three way Handshake

Front 68

What sequence of flags are sent during the TCP way handshake?

Back 68

SYN,

SYN, ACK

ACK

Front 69

Port 20

Back 69

FTP Data

Front 70

FTP Data port

Back 70

20

Front 71

Port 21

Back 71

FTP Control

Front 72

FTP Control port?

Back 72

21

Front 73

SSH Port?

Back 73

22

Front 74

Port 22?

Back 74

SSH

Front 75

Telnet Port?

Back 75

23

Front 76

Port 23?

Back 76

Telnet

Front 77

SMTP Port?

Back 77

25

Front 78

Port 25?

Back 78

SMTP

Front 79

DNS Port?

Back 79

53

Front 80

Port 53?

Back 80

DNS

Front 81

Port 67?

Back 81

DHCP Server

Front 82

DHCP Server port?

Back 82

67

Front 83

DHCP Client port?

Back 83

68

Front 84

Port 68?

Back 84

DHCP Client

Front 85

Port 69?

Back 85

TFTP Server

Front 86

TFTP Port?

Back 86

69

Front 87

Port 80

Back 87

HTTP

Front 88

HTTP Port?

Back 88

80

Front 89

Port 110

Back 89

POP3

Front 90

POP3 Port?

Back 90

110

Front 91

Port 161

Back 91

SNMP

Front 92

SNMP Port?

Back 92

161

Front 93

Port 443

Back 93

HTTP Secure (TLS/SSL)

Front 94

HTTP Secure Port (TLS/SSL)?

Back 94

443

Front 95

Port 514?

Back 95

Syslog

Front 96

Syslog port?

Back 96

514

Front 97

FTP Transport Protocol?

Back 97

TCP

Front 98

SSH Transport Protocol?

Back 98

TCP

Front 99

TelnetTransport Protocol?

Back 99

TCP

Front 100

SMTP Transport Protocol?

Back 100

TCP

Front 101

DNS Transport Protocol?

Back 101

UDP + TCP

Front 102

DHCP Transport Protocol?

Back 102

UDP

Front 103

TFTP Transport Protocol?

Back 103

UDP

Front 104

HTTP Transport Protocol?

Back 104

TCP

Front 105

POP3 Transport Protocol?

Back 105

TCP

Front 106

SNMP Transport Protocol?

Back 106

UDP

Front 107

HTTP Secure (TLS/SSL)Transport Protocol?

Back 107

TCP

Front 108

Syslog Transport Protocol?

Back 108

UDP

Front 109

What does the Administrative mode of a switchport represent?

Back 109

The configured switchport mode for an interface

Front 110

What does the operational mode of a switchport represent?

Back 110

The current opertating mode of the switchport

Front 111

Administrive mode: access

Back 111

The port will be used for access devices (User PC) and will not try and become a trunk and will never negotiate to become a trunk regardless of the far end

Front 112

Administrive mode: trunk

Back 112

Form a trunk and try negotiate the neighbour into becoming a trunk. Will become a trunk regardless of the far ends mode

Front 113

Administrive mode: dynamic auto

Back 113

Don't attempt to initiate trunk formation but negotiate a trunk if prompted with a DTP frame

Front 114

Administrive mode: dynamic deseriable

Back 114

Actively try and negotiate to become a trunk with the far end by sending out DTP frames. If the far end does not respond, become access.

Front 115

Switchport nonnegotate

Back 115

Disable DTP on the port

Front 116

administrively down, down

Back 116

disabled

Front 117

disabled (two word status)

Back 117

administrively down, down

Front 118

err-disabled (two word status)

Back 118

down, err-disable

Front 119

down, err-disable

Back 119

err-disable

Front 120

down, down

Back 120

notconnect

Front 121

notconnect (two word status)

Back 121

down, down

Front 122

up, up

Back 122

connected

Front 123

connected (two word status)

Back 123

up, up

Front 124

Layers of the 4 layer TCP/IP model

Back 124

Application

Transport

Internetwork

Link

Front 125

What does the switch do with the source MAC Address?

Back 125

The switch will learn the MAC address from the source field and put that into the MAC Address table with the port it arrived on

Front 126

What does the switch do with the destination Mac address?

Back 126

The switch uses the destination MAC address for forwarding operations

Front 127

Layer 4 PDU common name?

Back 127

Segment

Front 128

Layer 3 PDU common name

Back 128

Packet

Front 129

Layer 2 PDU common name

Back 129

frame

Front 130

Layer 1 PDU common name

Back 130

Bit

Front 131

Layer 5-7 PDU common name

Back 131

Data

Front 132

Devices that transmit on pins 1, 2

Back 132

PC NIC

Router

AP

Front 133

Devices that transmit on pins 3, 6

Back 133

Switches

Hubs

Front 134

How many bits are in a MAC Address?

Back 134

48-bits

Front 135

How many hexadecimal digits are in a MAC address?

Back 135

12 hex digits

Front 136

How many bits is a Hexadecimal digit?

Back 136

4

Front 137

How many bytes are in a MAC address?

Back 137

6 bytes

Front 138

What is the purpose of ARP

Back 138

Discover the MAC address of PC based on the IP Address. A layer 2 broadcast is sent in order to discover the machine.

Front 139

Layer 2 broadcast address?

Back 139

FFFF.FFFF.FFFF

Front 140

Settings for a console port?

Back 140

9600 bps

8-bit ASCII

No parity

1 stop bit

No flow control

Front 141

IEEE Autonegotiation failure defaults?

Back 141

Speed: Slowest supported speed

Duplex: If 10/100 Mbps (half) otherwise (full)

Front 142

CISCO Autonegotiation failure defaults?

Back 142

Speed: Sense speed

Duplex: If 10/100 Mbps (half) otherwise (full)

Front 143

Port security default violation mode?

Back 143

Shutdown

Front 144

Router IOS default transport inputs?

Back 144

Disabled SSH & Telnet

Front 145

Default port status for router interfaces?

Back 145

Shutdown

Front 146

Default port status for switch interfaces

Back 146

up

Front 147

Default Layer 2 protocol for Serial interfaces?

Back 147

HDLC

Front 148

Default hold-down timer for CDP

Back 148

180 seconds

Front 149

Default timer for sending CDP updates?

Back 149

60 seconds

Front 150

Numbers allowed for Numbered Standard ACL

Back 150

1-99 & 1300-1999

Front 151

Numbers allowed for Numbered Extended ACL

Back 151

100-199 & 2000-2699

Front 152

Comparison operators used for Extended IP ACL

Back 152

gt, lt, eq, ne, range

Front 153

ACL keywords for allowing is disallowing traffic

Back 153

permit & deny

Front 154

Standard ACLs check which Address of an IP packet?

Back 154

Source Address

Front 155

Where does Cisco recommend a Standard ACL be placed?

Back 155

Close to the Destination of the Packet.

Front 156

Where does Cisco recommend an Extended ACL be placed?

Back 156

Close to the source of the Packet

Front 157

Password type 5

Back 157

MD5 Hash

Front 158

Password type 7

Back 158

Encrypted password (service password-encryption)

Front 159

Password type 8

Back 159

PBKDF2

Front 160

Password type 9

Back 160

Scrypt

Front 161

Boot flag 0

Back 161

Load ROMMON

Front 162

Boot flag 1

Back 162

First IOS image found in flash

Front 163

Boot flag 2-F

Back 163

Checking startup-config for boot system command, otherwise load first flash IOS image

Front 164

0x2102

Back 164

Startup normal (0 = load startup-config)

Front 165

0x2142

Back 165

Ignore startup config (4 = ignore startup-config)