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Networking > Network > Flashcards

Network Flashcards

1
Q

What fields are changed with a dot1q tag?

A

FCS and tag

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2
Q

What VLAN is automatically created as the native VLAN on cisco routers?

A

vlan 1

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3
Q

What VLANs are used for token ring and fiber distributed data interface?

A

1002 - 1005

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4
Q

When converting hexidecimal to decimal, characters are seperated into ____.

A

pairs

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5
Q

When converting hexidecimal to decimal, what formula can be used to convert the pair?

A

x*16+y

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6
Q

A severity level of 7 will display _________.

A

every type of log message

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7
Q

A severity level of 4 will display _________.

A

warnings, errors, critical, alert, emergencies

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8
Q

A severity level of 2 will display _________.

A

critical, alert, emergencies

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9
Q

Which transport layer protocol does DNS use?

A

TCP and UDP

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10
Q

What are three protocols that use TCP?

A

HTTP, SNMP, FTP

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11
Q

What are three protocols that use UDP?

A

TFTP, DHCP, SNMP

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12
Q

What is automatic 6to4 tunneling?

A

tunnels IPv6 traffic across IPv4 networks

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13
Q

What is 4to6 tunneling?

A

tunnels IPv4 traffic over IPv6 network

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14
Q

What stacks do IPv6 border routers require?

A

IPv4 and IPv6

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15
Q

What stacks do IPv4 border routers require?

A

IPv4

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16
Q

What command can be used to view vlans, duplex, speed, and type for interfaces?

A

show interfaces status

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17
Q

What is the function of the FIB table?

A

forwarding information base - contains prefixes for ip routing

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18
Q

If a route of 0.0.0.0 is configured, what packets are sent to this address?

A

any packets that are not specified to use another route

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19
Q

Which port-security violation will place the interface into error-disabled?

A

shutdown

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20
Q

Which port-security violation will create syslog messages and counters?

A

restrict and shutdown

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21
Q

What is the datagram size of extended ping?

A

100 bytes

22
Q

What is the default timeout for ping?

A

2 seconds

23
Q

What is the default repeat count for ping?

A

5

24
Q

What command can be used to display IP addresses and MAC addresses of routers?

A

show interfaces

25
Q

When a packet is sent from Host A from inside your network to Host B which is outside of your network, what are the local and global address steps?

A

inside local, outside local, inside global, outside global

26
Q

When a packet is received from Host B which is outside of your network to Host A which is inside of your network, what are the local and global address steps?

A

inside global, outside global, inside local, outside local

27
Q

If CEF and an ACL log are enabled, which logging takes precedent?

A

ACL, fast-switch

28
Q

If an IP address is statically configured but also exists within the DHCP pool range, what occurs when the static IP address is assigned to a client?

A

conflict detection, remove address from DHCP

29
Q

What is required to be configured in order to allow a DHCP server on router A to communicate with devices connected to router B?

A

ip helper-address

30
Q

What command can be used to identify the lease time set for a DHCP server?

A

show run

31
Q

What command can be used to identify the default gateway?

A

show ip route

32
Q

What command can be used to view DHCP information?

A

show ip dhcp pool

33
Q

What field indicates the next ip-address that will be leased?

A

current index

34
Q

Port-security limits traffic sent _____ dynamic or static _____ addresses.

A

from, MAC

35
Q

What is the first step in password recovery for Cisco devices?

A

boot in rommon mode

36
Q

The number of networks in binary refer to the amount of ___ bits.

A

“on” or 1

37
Q

The number of hosts in binary refer to the amount of ___ bits.

A

“off” or 0

38
Q

What type of NAT is used when translating addresses to a pool of public IP addresses?

A

dynamic NAT

39
Q

What type of NAT is used when translating a single private address into a single public IP address?

A

static NAT

40
Q

What is the difference between RIPv1 and RIPv2?

A

v1 is classful, v2 is classless

41
Q

How do baby giants occur?

A

encapsulation or features that add to a frame to exceed 1,500 bytes

42
Q

What authentication can be configured for voice VLAN?

A

802.1X

43
Q

Voice VLAn is enabled by default. True or False.

A

False

44
Q

What are protocol works on both IPv4 and IPv6?

A

DNS and OSPF

45
Q

Using a ping command, what do periods and exclamation marks mean?

A

period - timeout

exclamation - successful ping

46
Q

What does ROAS usually consist of?

A

single router with trunk link to subinterfaces

47
Q

When is outbound ACL checked?

A

after received and routed to interface

48
Q

When is inbound ACL checked?

A

after received but before routed to outbound

49
Q

What is required when configuring remote management to a switch?

A

ip address
ip domain-name
ip default-gateway
crypto key generate rsa

50
Q

What would produce u.u.u from ping?

A

unreachable error
network is not on routing table
gateway of last resort is not configured

Networking (9 decks)

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