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Flashcards in Network Access Q/A's Deck (30)
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1

What's type of data is carried over a port trunk?

tagged VLAN data traffic

2

What type of trunking protocol is 802.1Q?

VLAN trunking protocol

3

What type of data is carried over a Native VLAN?

What type of data is managed over a Native VLAN?

untagged VLAN data traffic

device management

4

What is the clock rate in a router used to control over it's serial interface?

data transmission speed

5

When changing the bandwidth on an interface what's two things are impacted?

QOS and software policy management

6

What is the default speed of serial interface?

1.544 Mbps

7

What does an EtherChannel combine to create a single interface/channel for data traffic ...?

multiple physical ports

8

Where are VLAN trunks created from?

the sub-interface of an interface

9

By ignoring hello messages, BPDU guard is to used to prevent?

switching loops

10

Port Fast when enabled immediately puts?

When Port Fast, is enabled what is disabled?

When Port Fast is enabled what should also be enabled immediately and why?

ports into forwarding state

(STP) Spanning Tree Protocol

BPDU Guard to prevent switching loops.

11

Telnet is what type of two way communication terminal?

Telnet transports data over a network encrypted or in-plain text?

text-orientated virtual terminal

In-plain text.

12

What does SSH stand for?

SSH provides what type of communication and connection over a network?

Secure Shell

two way encrypted communication

13

What does HTTP stands for?

HTTP is responsible for allowing access to what ... over a public network?

Hyper Text Transport Protocol

remote server resources

14

What does HTTPS stand for?

HTTPS is responsible for allowing access to what ... over a public network?

Hyper Text Transport Secure Protocol

encrypted remote server resources

15

Console ports on routers and switches are used for?

device management

16

Dynamic ARP Inspection (DAI) is used to automatically...?

inspect and reject invalid or malicious ARP packets.

17

What are the three states of port security?

Shutdown
Protect
Restrict

18

When a port is put in the shutdown state of port security what happens?

port shuts down, goes into an err-disable state

19

In the protect state of port security what happens?

unauthorized addresses drop with no logging

20

In the restricted state of port security what happens?

unauthorized addresses drop - logging and violation counts

21

Sticky MAC address in port security are assigned...?

dynamically

22

The default behavior of port security with no additional configuration...?

only one MAC address is allowed at a time

23

What is port security responsible for?

Securing ports from unauthorized access

24

What is the recommended ratio and rule of thumb for Ether-channel from the access layer to distribution?

20 PC's to 1

A single uplink of 1 Gbps for ever 20 PC's on 1 Gbps NICs to the distribution layer.

25

What is the recommended ratio and rule of thumb for Ether-channel from the core layer to distribution? (general)

Recommendation is 4:1

26

Layer 2 Tunnel Protocol (L2TP) is responsible for supporting service delivery of?

Virtual Private Networks (VPN) by an ISP

27

Link Layer Discovery Protocol (LLDP) is responsible for advertising device information to?

LLDP is similar to what other protocol?

directly connected neighbors

Cisco Discover Protocol (CDP)

28

Broadcast address are used to send frames to ...?

all devices over a network

29

Circuit switching operates at what layer?

Circuit switching provides a physical path between what two things?

Circuit switching is commonly used to establish a?

What is an example of circuit switching?

Layer 1

source and destination

channel/circuit

(ex. POTS Plain Old Telephone System)

30

Packet switching operates at what layer?

Packet switching divides data into what?

Packet switching is responsible for?

Layer 3

blocks of frames with a header and payload

grouping data to distribute and route over networks