CISCO EXAM 6 FINAL Q2

Question 1

LLA

Answer 1

Local Link Address
FF80::

Question 2

ULA

Answer 2

Unique Local Address
FC00-FDFF

Question 3

Legacy Classful Addressing

Answer 3

128, 223, 239, 255

Question 4

How do you dynamically assign a GUA?

Answer 4

GUA: Global Unicast Address, IP address for ipv6.

RS: Hosts ask router for address
RA: Router gives host address

Question 5

What is EUI-64

Answer 5

Creates LLA by adding bits to MAC

Question 6

Types of IPv6 multicast addresses?

Answer 6

Well known
Solicited

Question 7

What is the all nodes multicast address?

Answer 7

FF01::01

Question 8

What is the all routers multicast address?

Answer 8

FF02::2

Question 9

What is ICMP and ICMP messages?

Answer 9

ICMP gives feedback about packet transmissions.

RS,RA,NS,NA

NS and NA are like RS and RA but check for DAD (Duplicate Address Detection)

Question 10

TCP Application Protocols

Answer 10

FTP, HTTP, SMTP, SSH

Question 11

UDP Application Protocols

Answer 11

DHCP, DNS, SNTP, TFTP, VoIP

Question 12

Application Layer Application Protocols

Answer 12

HTTP, DNS, SMTP, POP, DHCP

Question 13

Presentation Layer Protocols

Answer 13

MPEG, JPEG, GIF

Question 14

Session Layer Protocols

Answer 14

SIP, SCP, SMB, RPE

Question 15

Packet Tracer network security commands

Answer 15

netstat: Lists protocols
Nslookup: Shows default DNS server
Autosecure: Secures Router

Question 16

Create/End TCP connection

Answer 16

create: syn,ack,syn,ack
terminate: fin,ack,fin,ack

Question 17

How does DHCP dynamically assign ipv6 addresses?

Answer 17

SLAAC: Router has all
Stateless: Router has some and Server has some
Stateful: Router only has default gateway

Question 18

Port Zones

Answer 18

Well Known: <1k
Registered: <49k
Private/Dynamic: <65k

Question 19

Common Port Numbers

Answer 19

FTP: 20-21
SSH ~ 22
Telnet ~ 23
HTTP ~ 80
SMTP ~ 25

Question 20

What are the DNS Message formats?

Answer 20

A ~ IPv4 end device
AAAA ~ IPv6 end device
NS ~ Name Server
MX ~ Mail Exchange

Question 21

DHCP requesting process

Answer 21

discover ~ Host looks for server
offer ~ Server offers service
request ~ Hosts requests
pack ~ Server accepts host will use new info

Question 22

HTTP message types

Answer 22

get ~ Client requests from website
post ~ Website uploads data
put ~ Website uploads content

Question 23

How to prevent network attacks

Answer 23

IPS ~ Monitors traffic
ESA/WSA ~ Filters emails and websites
AAA Server ~ Database of access rights
Firewall
VPN

Question 24

SMTP

Answer 24

Sends email

Question 25

POP

Answer 25

Retrieves and Deletes Emails

Question 26

IMAP

Answer 26

Retrieves emails

Question 27

DNS

Answer 27

Resolves names of ip addresses

Question 28

SMB

Answer 28

enables devices to communicate

Question 29

Malware Types

Answer 29

Virus ~ Spreads by user intervention
Worm ~ Spreads by itself
Trojan horse ~ Looks legit

Question 30

Access Attack

Answer 30

Manipulates data or access rights

Question 31

AAA

Answer 31

Authenticate, Authorize, Account

Question 32

DMZ

Answer 32

Admin allows some rights through fire wall

Question 33

Types of Firewalls

Answer 33

Packet Filter ~ Filters on IP address

Application Filter ~ Filters on port numbers

Stateful Packet Inspection ~ Incoming packets must be requested from inside network

Question 34

Time Exceeded

Answer 34

ICMP message when packet expires TTL