Testking_640-802_V13
.pdf
Cisco 640-802
.
Q&A with explanations
Version 13.0
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Table of Contents
TOPIC 1, DESCRIBE HOW A NETWORK WORKS (84 questions) |
6 |
Section 1: Describe the purpose and functions of various network devices (9 questions)6 6 Section 2: Select the components required to meet a network specification (4 questions)11 11
Section 3: Use the OSI and TCP/IP models and their associated protocols to explain how
data flows in a network (12 questions) |
14 |
Section 4: Describe common networked applications including web applications (4 |
|
questions) |
26 |
Section 5: Describe the purpose and basic operation of the protocols in the OSI and TCP
models (13 questions) |
29 |
Section 6: Describe the impact of applications (Voice Over IP and Video Over IP) on a |
|
network (2 questions) |
38 |
Section 7: Interpret network diagrams (7 questions) |
39 |
Section 8: Determine the path between two hosts across a network (16 questions) |
52 |
Section 9: Describe the components required for network and Internet communications (5
questions) |
74 |
Section 10: Identify and correct common network problems at layers 1, 2, 3 and 7 using a
layered model approach (8 questions) |
81 |
Section 11: Differentiate between LAN/WAN operation and features (4 questions) |
88 |
TOPIC 2, CONFIGURE, VERIFY, AND TROUBLESHOOT A SWITCH WITH VLANs |
|
AND INTERSWITCH COMMUNICATIONS (165 questions) |
92 |
Section 1: Select the appropriate media, cables, ports, and connectors to connect switches
to other network devices and hosts (6 questions) |
92 |
Section 2: Explain the technology and media access control method for Ethernet networks
(14 questions) |
98 |
Section 3: Explain network segmentation and basic traffic management concepts (5 |
|
questions) |
109 |
Section 4: Explain basic switching concepts and the operation of Cisco switches (13 |
|
questions) |
113 |
Section 5: Perform and verify initial switch configuration tasks including remote access
management (10 questions) |
127 |
Section 6: Verify network status and switch operation using basic utilities (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW & DEBUG commands (8 questions)136
136
Section 7: Identify, prescribe, and resolve common switched network media issues, configuration issues, auto negotiation, and switch hardware failures (6 questions) 145 Section 8: Describe enhanced switching technologies (including: VTP, RSTP, VLAN,
PVSTP, 802.1q) (35 questions) |
150 |
Section 9: Describe how VLANs create logically separate networks and the need for
routing between them (10 questions) |
186 |
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Section 10: Configure, verify, and troubleshoot VLANs (11 questions) |
196 |
Section 11: Configure, verify, and troubleshoot trunking on Cisco switches (14 questions)207
|
207 |
Section 12: Configure, verify, and troubleshoot interVLAN routing (8 questions) |
219 |
Section 13: Configure, verify, and troubleshoot VTP (11 questions) |
230 |
Section 14: Configure, verify, and troubleshoot RSTP operation (5 questions) |
243 |
Section 15: Interpret the output of various show and debug commands to verify the |
|
operational status of a Cisco switched network. (3 questions) |
250 |
Section 16: Implement basic switch security (including: port security, trunk access, |
|
management vlan other than vlan1, etc.) (6 questions) |
254 |
TOPIC 3, IMPLEMENT AN IP ADDRESSING SCHEME AND IP SERVICES TO |
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MEET NETWORK REQUIREMENTS IN A MEDIUM-SIZE ENTERPRISE BRANCH |
|
OFFICE NETWORK (76 questions) |
261 |
Section 1: Describe the operation and benefits of using private and public IP addressing
(5 questions) |
261 |
Section 2: Explain the operation and benefits of using DHCP and DNS (3 questions)265 265
Section 3: Configure, verify and troubleshoot DHCP and DNS operation on a router.
(including: CLI/SDM) (1 question) |
267 |
Section 4: Implement static and dynamic addressing services for hosts in a LAN |
|
environment (15 questions) |
269 |
Section 5: Calculate and apply an addressing scheme including VLSM IP addressing
design to a network (20 questions) |
285 |
Section 6: Determine the appropriate classless addressing scheme using VLSM and |
|
summarization to satisfy addressing requirements in a LAN/WAN environment (24 |
|
questions) |
309 |
Section 7: Describe the technological requirements for running IPv6 in conjunction with
IPv4 (including: protocols, dual stack, tunneling, etc). (0 questions) |
328 |
Section 8: Describe IPv6 addresses (1 question) |
328 |
Section 9: Identify and correct common problems associated with IP addressing and host
configurations (7 questions) |
330 |
TOPIC 4, CONFIGURE, VERIFY, AND TROUBLESHOOT BASIC ROUTER |
|
OPERATION AND ROUTING ON CISCO DEVICES (211 questions) |
339 |
Section 1: Describe basic routing concepts (including: packet forwarding, router lookup
process) (4 questions) |
339 |
Section 2: Describe the operation of Cisco routers (including: router bootup process,
POST, router components) (23 questions) |
343 |
Section 3: Select the appropriate media, cables, ports, and connectors to connect routers
to other network devices and hosts (5 questions) |
362 |
Section 4: Configure, verify, and troubleshoot RIPv2 (5 questions) |
367 |
Section 5: Access and utilize the router to set basic parameters. (including: CLI/SDM) (7
questions) |
372 |
|
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Section 6: Connect, configure, and verify operation status of a device interface (8 |
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questions) |
378 |
Section 7: Verify device configuration and network connectivity using ping, traceroute,
telnet, SSH or other utilities (8 questions) |
389 |
Section 8: Perform and verify routing configuration tasks for a static or default route |
|
given specific routing requirements (11 questions) |
396 |
Section 9: Manage IOS configuration files. (including: save, edit, upgrade, restore) (12
questions) |
406 |
Section 10: Manage Cisco IOS. (13 questions) |
419 |
Section 11: Compare and contrast methods of routing and routing protocols (32 |
|
questions) |
430 |
Section 12: Configure, verify, and troubleshoot OSPF (34 questions) |
458 |
Section 13: Configure, verify, and troubleshoot EIGRP (23 questions) |
492 |
Section 14: Verify network connectivity (including: using ping, traceroute, and telnet or
SSH) (5 questions) |
515 |
Section 15: Troubleshoot routing issues (5 questions) |
518 |
Section 16: Verify router hardware and software operation using SHOW & DEBUG |
|
commands. (7 questions) |
524 |
Section 17: Implement basic router security (9 questions) |
532 |
TOPIC 5, EXPLAIN AND SELECT THE APPROPRIATE ADMINISTRATIVE TASKS |
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REQUIRED FOR A WLAN (12 questions) |
541 |
Section 1: Describe standards associated with wireless media (including: IEEE WI-FI |
|
Alliance, ITU/FCC) (2 questions) |
541 |
Section 2: Identify and describe the purpose of the components in a small wireless |
|
network. (Including: SSID, BSS, ESS) (2 questions) |
542 |
Section 3: Identify the basic parameters to configure on a wireless network to ensure that
devices connect to the correct access point (2 questions) |
543 |
Section 4: Compare and contrast wireless security features and capabilities of WPA |
|
security (including: open, WEP, WPA-1/2) (3 questions) |
546 |
Section 5: Identify common issues with implementing wireless networks. (Including: |
|
Interface, missconfiguration) (3 questions) |
548 |
TOPIC 6, IDENTIFY SECURITY THREATS TO A NETWORK AND DESCRIBE |
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GENERAL METHODS TO MITIGATE THOSE THREATS (9 questions) |
549 |
Section 1: Describe today's increasing network security threats and explain the need to
implement a comprehensive security policy to mitigate the threats (2 questions) |
550 |
Section 2: Explain general methods to mitigate common security threats to network |
|
devices, hosts, and applications (2 questions) |
551 |
Section 3: Describe the functions of common security appliances and applications (1
question) |
553 |
Section 4: Describe security recommended practices including initial steps to secure |
|
network devices (4 questions) |
553 |
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TOPIC 7, IMPLEMENT, VERIFY, AND TROUBLESHOOT NAT AND ACLs IN A |
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MEDIUM-SIZED ENTERPRISE BRANCH NETWORK. (75 questions) |
557 |
Section 1: Describe the purpose and types of ACLs (9 questions) |
557 |
Section 2: Configure and apply ACLs based on network filtering requirements. |
|
(including: CLI/SDM) (24 questions) |
564 |
Section 3: Configure and apply an ACLs to limit telnet and SSH access to the router |
|
using (including: SDM/CLI) (9 questions) |
593 |
Section 4: Verify and monitor ACLs in a network environment (9 questions) |
600 |
Section 5: Troubleshoot ACL issues (5 questions) |
610 |
Section 6: Explain the basic operation of NAT (4 questions) |
614 |
Section 7: Configure NAT for given network requirements using (including: CLI/SDM)
(6 questions) |
617 |
Section 8: Troubleshoot NAT issues (9 questions) |
624 |
TOPIC 8, IMPLEMENT AND VERIFY WAN LINKS (57 questions) |
635 |
Section 1: Describe different methods for connecting to a WAN (3 questions) |
635 |
Section 2: Configure and verify a basic WAN serial connection (11 questions) |
637 |
Section 3: Configure and verify Frame Relay on Cisco routers (29 questions) |
650 |
Section 4: Troubleshoot WAN implementation issues (4 questions) |
676 |
Section 5: Describe VPN technology (including: importance, benefits, role, impact, |
|
components) (0 questions) |
680 |
Section 6: Configure and verify a PPP connection between Cisco routers (10 questions)680 680
TOPIC 9, TESTKING NETWORK, SCENARIO |
688 |
TOPIC 9, TESTKING NETWORK (5 questions) |
689 |
TOPIC 10, TestKing.com network, Scenario |
692 |
TOPIC 10, TestKing.com network, (5 questions) |
693 |
Topic 11, Switched Network, Scenario |
695 |
Topic 11, Switched Network, (5 questions) |
696 |
Topic 12, TestKing Communications, Scenario |
699 |
Topic 12, TestKing Communications, (4 Questions) |
699 |
TOPIC 13, Mixed (6 questions) |
702 |
Total number of questions: 713
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TOPIC 1, DESCRIBE HOW A NETWORK WORKS (84 questions)
Section 1: Describe the purpose and functions of various network devices (9 questions)
QUESTION NO: 1
Both switches and hubs are being utilized within the TestKing network. Which of the following is true regarding the use of switches and hubs for network connectivity in this network?
A.Switches take less time to process frames than hubs take
B.Hubs can filter frames
C.Switches do not forward broadcasts
D.Switches increase the number of collision domains in the network
E.Using hubs can increase the amount of bandwidth available to hosts
F.None of the above
Answer: D
QUESTION NO: 2
Which one of the following characteristics is true regarding the use of hubs and switches?
A.Hubs can have their ports be configured with VLANs
B.Using hubs is costly with regard to bandwidth availability.
C.Switches can not forward broadcasts.
D.Switches are more efficient than hubs in processing frames.
E.Switches increase the number of collision domains in the network.
Answer: E
Explanation:
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Switches increases the number of collisions domains in the network. Switches that are configured with VLANs will reduce the size of the collision domains by increasing the number of collision domains in a network, but making them smaller than that of one big, flat network.
Incorrect Answers:
A.Switches are capable of VLAN configurations, but hubs are not.
B.Hubs are generally the least costly method possible to connect multiple devices together in a network.
C.Switches forward broadcasts and multicasts, by default, to all ports within the same VLAN. Only routers block all broadcast traffic by default.
D.Switches and hubs can be equally efficient in processing frames, in theory. In practice, switches are generally more efficient as they usually have more CPU and memory allocated to them, and are generally much more expensive than a simple hub.
QUESTION NO: 3
When comparing and contrasting the similarities and differences between bridges and switches, which of the following are valid statements? Choose all the valid answer choices)
A.Bridges are faster than switches because they have fewer ports.
B.A switch is a multiport bridge,
C.Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.
D.A bridge will forward a broadcast but a switch will not.
E.Bridges and switches increase the size of a collision domain.
F.None of the above statements are true.
Answer: B, C
Explanation:
Both bridges and switches build the bridge table by listening to incoming frames and examining the source MAC address in the frame.
Switches are multiport bridges that allow you to create multiple broadcast domains. Each broadcast domain is like a distinct virtual bridge within a switch.
Incorrect Answers:
A. Switches are generally faster than bridges. Bridges also do not necessarily have fewer ports than switches.
D. Both bridges and switches will forward broadcast and multicast traffic, assuming that the traffic remains in the same VLAN.
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E. The use of VLANs in a switch can decrease the size of the collision domain, by creating additional, smaller collision domains.
QUESTION NO: 4
Which of the following correctly describe the various functions and virtues of a router? (Select all valid answer choices)
A.Packet switching
B.Collision prevention on a LAN segment.
C.Packet filtering
D.Broadcast domain enlargement
E.Broadcast forwarding
F.Internetwork communication
G.None of the above
Answer: A, C, F Explanation:
The main function of a router is to connect different, separated networks together. In doing so, switching packets from one network to another is a primary function, along with providing for communication between networks. As an additional feature, routers are capable of providing filtering on a network address and application port level, so choice C is also correct.
Incorrect Answers:
B. Routers can indeed be used to segment a network separate a collision domain, since routers do not forward LAN broadcasts and multicasts to other interfaces. However, routers alone can not prevent all collisions from occurring on any given LAN segment.
D.Routers actually segment LANs into smaller broadcast domains.
E.Routers do not forward broadcast and multicast traffic out the additional interfaces by default. Unless bridging or IP helpers are configured on the router, LAN broadcasts are blocked at the router level.
QUESTION NO: 5
The LAN needs are expanding at the Testking corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the TestKing network.
Which of the following are layer 1 devices that you can use? (Choose all that apply.)
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A.A switch
B.A router
C.A network adapter card
D.A hub
E.A repeater
Answer: D, E
Explanation:
A hub simply repeats the electrical signal and makes no attempt to interpret the electrical signal (layer 1) as a LAN frame (Layer 2). So, a hub actually performs OSI layer 1 functions, repeating an electrical signal, whereas a switch performs OSI layer 2 functions, actually interpreting Ethernet header information, particularly addresses, to make forwarding decisions. Hubs can be used to increase the number of stations that can be supported on a LAN.
Because the repeater does not interpret what the bits mean, but does examine and generate electrical signals, a repeater is considered to operate at Layer 1. Repeaters can be used to physically extend the LAN to greater distances.
QUESTION NO: 6
Cisco is the leader in the router market space. What basic functions do their routers perform in a network? (Choose two)
A.The microsegmentation of broadcast domains
B.Path selection
C.Packet switching
D.Bridging between LAN segments
E.Access layer security
F.VLAN membership assignment
G.Application optimization
Answer: B, C
Explanation:
The primary functions of a router are: Packet Switching and Path Selection. It is the routers job to determine the best method for delivering the data, and switching that data as quickly as possible.
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