Day 30

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1. The role of the OSI _____ Layer is to break down the data from the higher layers into smaller parts, which are referred to as segments (at this layer). Virtual circuits are set up here, which are required before devices can communicate.

Transport

Presentation

Session

Network

Question 1 of 22

2. Match the layers to the services of the OSI model.

7	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect
6	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect
5	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect
4	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect
3	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect
2	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect
1	Network Unselect Presentation Unselect Physical Unselect Transport Unselect Data Link Unselect Application Unselect Session Unselect

Question 2 of 22

3. IPv6 has security capabilities built in, including authentication and privacy via IPSec.

True

False

Question 3 of 22

4. 11111100 in binary is what in decimal?

252

224

192

254

Question 4 of 22

5. You issue a 'traceroute' command and see in the outputs the letter 'Q'. What does this indicate?

Packet blocked by firewall

Timeout

Unknown destination

Source quench received

Packet blocked by access list

Question 5 of 22

6. Which command results in the output below?

Interface Serial0/1/0 Hardware is PowerQUICC MPC860 DCE V.35, no clock

show version

show controllers

show interfaces

show serial

show hardware

Question 6 of 22

7. A gratuitous ARP request is an ARP request packet where the source MAC, the source IP, and the destination IP addresses are all set to the IP address of the machine issuing the packet, and the destination MAC is the broadcast address FFFF: FFFF: FFFF.

True

False

Question 7 of 22

8. The role of the OSI ______ Layer is to set up, manage, and terminate sessions or dialogues between devices.

Network

Session

Transport

Presentation

Question 8 of 22

9. HTTP with TLS/SSL (HTTPS) uses port ____.

161/162

443

141

Question 9 of 22

10. If a host has not been configured with an IPv6 address, it can use one of these three methods to obtain one, as well as other network settings such as the DNS server address.

SLAAC – Stateless Autoconfiguration

Stateful NAT

Router Solicitation Protocol

Stateless DHCPv6

ARP for IPv6

Stateful DHCPv6

Question 10 of 22

11. LWAPs typically use a protocol called CAPWAP (Control and Provisioning of Wireless Access Points).

True

False

Question 11 of 22

12. You can debug SNMP traffic with the _______ command.

debug 161

debug snmp

debug nms

debug management

Question 12 of 22

13. In order to interface with the upper and lower levels, the OSI Data Link Layer is further subdivided into? (choose two)

Logical Access Control (LAC)

Media Data Control (MDC)

Logical Link Control (LLC)

Media Access Control (MAC)

Local Data Control (LDC)

Question 13 of 22

14. A stateless firewall doesn’t have the enhanced capability to make decisions based on historical data (i.e., it isn’t aware of whether the packet is part of an existing connection or a new one).

True

False

Question 14 of 22

15. According to the Cisco design model, any programming that requires additional processor speed or memory should be done in the core. You would add ACLs, QoS, or any other programming here due to the high processing power of the core devices.

True

False

Question 15 of 22

16. ____ mandates that before a network host permanently configures its own IPv6 address during boot up, it should validate that another network host is not already using the IPv6 address it wants to use.

Neighbor Advertisement Detection

Duplicate Address Detection

ARP for IPv6

Neighbor Solicitation Multicast

Question 16 of 22

17. ICMPv6 is a core component of IPv6. Within IPv6, ICMPv6 is used for which of the following? (choose all which apply)

The replacement of ARP

IPv6 stateless autoconfiguration

IPv6 prefix renumbering

Path MTU Discovery (PMTUD)

Duplicate Address Detection (DAD)

Question 17 of 22

18. Which pinouts are swapped to create a crossover cable? (choose all that apply)

1-3

5-8

2-6

4-2

Question 18 of 22

19. One exception to the broadcast rule is that, if an ARP broadcast reaches a router, it will forward it (by default).

True

False

Question 19 of 22

20. The default bits per second setting for a console session are?

256

9600

1024

1800

Question 20 of 22

21. Upon receiving the IPv6 Router Solicitation (RS) message, routers advertise their presence using ______ messages, which typically include prefix information for the local link as well as any additional configuration, such as suggested hop limits.

Router Neighbor (RN)

Router Reply (RR)

Router Advertisement (RA)

Router Response (RR)

Question 21 of 22

22. An IP flow can be based on which of the following packet attributes?

Source address

Router or switch interface

Source port

Class of Service

Layer 3 protocol type

Destination address

Question 22 of 22

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