Tài liệu Sample Test pdf

After presenting exam pointers, this chapter supplies a 100-question sample test devised to quiz you on subject matter related to Cisco CCIE Routing and Switching written exam 350-001..

to decode ambiguity, how to work within the Cisco testing framework, how

to decide what you need to memorize, and what to expect before, during, and after the exam After presenting exam pointers, this chapter supplies a 100-question sample test devised to quiz you on subject matter related to Cisco CCIE Routing and Switching written exam 350-001 You’ll find the answers to the sample test in Chapter 12.

When you take the sample test, try to simulate the actual testing ment In other words, find a quiet spot, allow yourself two hours to com- plete the sample test, and answer all the sample test questions before comparing your responses to the correct answers listed in Chapter 12 Reviewing your answers will help you to identify your strengths and weak- nesses in various topic areas But first, before you jump ahead to the sample test, take a few moments to review the next few sections.

environ-There should be no doubt in your mind that you’re facing a test full of specific and pointed questions The version of the CCIE Routing and Switching written exam you’ll take is a fixed-length exam The exam will include 100 multiple choice questions, and passing marks are set by using statistical analysis and are subject to change You’ll be allotted 120 minutes to complete it.

Always take the time to read a question at least twice before selecting an answer, and always look for any network diagrams or figures as you examine each question Network diagrams include graphical information that’s related to a question Not every question has only one answer; many questions require multiple an- swers Therefore, you need to read each question carefully to determine how many answers are necessary or possible and to look for additional hints or instructions when selecting answers Such instructions often occur in brackets immediately following the question itself (as they do for all multiple-choice, multiple-answer questions) Unfortunately, some questions do not have any right answers and you’re forced to find the “most correct” choice.

Picking Proper Answers

Obviously, the only way to pass any exam is to select enough of the right answers

to obtain a passing score However, Cisco’s exams are not standardized like the SAT and GRE exams; they’re far more diabolical and convoluted In some cases, questions are strangely worded, and deciphering them can be a real challenge In those cases, you may need to rely on answer-elimination skills Almost always, at least one answer out of the possible choices for a question can be eliminated immediately because it matches one of these conditions:

➤ The answer does not apply to the situation.

➤ The answer describes a nonexistent issue, an invalid option, or an nary state.

imagi-After you eliminate all answers that are obviously wrong, you can apply your retained knowledge to eliminate further answers Look for items that sound cor- rect but refer to actions, commands, or features that are not present or not avail- able in the situation that the question describes.

If you’re still faced with a blind guess among two or more potentially correct answers, reread the question Try to picture how each of the possible remaining answers would alter the situation Be especially sensitive to terminology; some- times the choice of words (“remove” instead of “disable”) can make the difference between a right answer and a wrong one.

answer An unanswered question offers you no points, but guessing gives you at least some chance of getting a question right; just don’t be too hasty when mak- ing a blind guess.

Because you’re taking a fixed-length test, you can wait until the last round of reviewing marked questions (just as you’re about to run out of time or out of unanswered questions) before you start making guesses Guessing should be your technique of last resort.

Decoding Ambiguity

Cisco exams have a reputation for including questions that can be difficult to interpret, confusing, or ambiguous In our experience with numerous exams, we consider this reputation to be completely justified The Cisco exams are tough, and they’re deliberately made that way.

The only way to beat Cisco at its own game is to be prepared You’ll discover that many exam questions test your knowledge of things that are not directly related

to the issue that a question raises This means that the answers you must choose from—even incorrect ones—are just as much a part of the skill assessment as the question itself If you don’t know something about most aspects of CCIE Rout- ing and Switching written exam, you might not be able to eliminate obviously wrong answers because they relate to a different area of CCIE Routing and Switch- ing written exam than the area the question at hand is addressing In other words, the more you know about the Cisco IOS and troubleshooting Cisco internetworks, the easier it will be for you to tell a right answer from a wrong one.

Questions often give away their answers, but you have to be Sherlock Holmes to see the clues Often, subtle hints appear in the question text in such a way that they seem almost irrelevant to the situation You must realize that each question

is a test unto itself and that you need to inspect and successfully navigate each question to pass the exam Look for small clues, such as access-list modifications, problem isolation specifics (such as which layers of the OSI model are not func- tioning correctly), and invalid Cisco IOS commands Little things like these can point at the right answer if properly understood; if missed, they can leave you facing a blind guess.

Another common difficulty with certification exams is vocabulary Be sure to brush up on the key terms presented at the beginning of each chapter You may also want to read through the glossary at the end of this book the day before you take the test.

The test questions appear in random order, and many elements or issues that receive mention in one question may also crop up in other questions It’s not uncommon to find that an incorrect answer to one question is the correct answer

to another question, or vice versa Take the time to read every answer to each question, even if you recognize the correct answer to a question immediately Because you’re taking a fixed-length test, you can revisit any question as many times as you like If you’re uncertain of the answer to a question, check the box that’s provided to mark it for easy return later on You should also mark questions you think may offer information that you can use to answer other questions We usually mark somewhere between 25 and 50 percent of the questions on exams we’ve taken The testing software is designed to let you mark every question if you choose; use this framework to your advantage Everything you’ll want to see again should be marked; the testing software can then help you return to marked questions quickly and easily.

We strongly recommend that you first read through the entire test quickly, before getting caught up in answering individual questions This will help to jog your memory as you review the potential answers and can help identify questions that you want to mark for easy access

to their contents It will also let you identify and mark the really tricky questions for easy return as well The key is to make a quick pass over the territory to begin with so that you know what you’re up against Then you can survey that territory more thoroughly on a second pass

as you begin to answer all questions systematically and consistently.

Deciding What to Memorize

The amount of memorization you must undertake for an exam depends on how well you remember what you’ve read and how well you know the Cisco IOS

by heart The tests will stretch your recollection of the router’s commands and functions.

If you work your way through this book while sitting at a Cisco router (actually, you may need a group of routers) and try to manipulate this environment’s fea- tures and functions as they’re discussed throughout the book, you should have little or no difficulty mastering this material Also, don’t forget that The Cram Sheet at the front of the book is designed to capture the material that’s most important to memorize; use this to guide your studies as well.

The best way to prepare for the test—after you’ve studied—is to take at least one practice exam We’ve included one here in this chapter for that reason; the test questions are located in the pages that follow (and unlike the preceding chapters

in this book, the answers don’t follow the questions immediately; you’ll have to flip to Chapter 12 to review the answers separately).

Give yourself 120 minutes to take the exam, keep yourself on the honor system, and don’t look at earlier text in the book or jump ahead to the answer key When your time is up or you’ve finished the questions, you can check your work in Chapter 12 Pay special attention to the explanations for the incorrect answers; these can also help to reinforce your knowledge of the material Knowing how to recognize correct answers is good, but understanding why incorrect answers are wrong can be equally valuable.

Taking the Test

The night before you’re going to take the exam, you should feel as if you are almost bursting with knowledge and can barely wait to sit for the examination If you’ve reached this readiness level, you’re prepared to take the examination.

On exam-day eve, you should relax and spend an hour maximum on the test materials Go over The Cram Sheet as well as your own study notes Don’t sit up all night studying and worrying—if you want to do your best, you have to feel refreshed Have a good meal, scan your study materials, and then get a good night’s sleep.

On the day of the exam, eat a well-balanced breakfast and briefly review The Cram Sheet and your study notes Ensure that you arrive at the testing center at least one hour before your scheduled time Then, find a nice quiet corner to relax and mull over the main exam subjects.

Once you’re sitting in front of the testing computer, there’s nothing more you can

do to increase your knowledge or preparation Take a deep breath, stretch, and start reading that first question.

There’s no need to rush; you have plenty of time to complete each question and

to return to those questions that you skip or mark for return Both easy and difficult questions are intermixed throughout the test in random order Don’t cheat yourself by spending too much time on a hard question early on in the test, thereby depriving yourself of the time you need to answer the questions at the end of the test.

On a fixed-length test, you can read through the entire test and, before returning

to marked questions for a second visit, figure out how much time you’ve got per

After you complete the exam, your test will be scored immediately A few ments after you finish, the computer will indicate whether you’ve passed or failed.

You Failed

If you fail the CCIE Routing and Switching written exam, don’t worry about the result While the test is fresh in your mind, jot down problem areas in a notepad (the sooner you make notes for yourself the better) Try to remember questions you felt less comfortable with and study that area before taking the exam again The CCIE written exam is not an easy exam to pass In fact, this examination ranks among the toughest networking examinations in today’s certification mar- ket If you really want to be a CCIE, a first-attempt failure should not discourage you too much In fact, a failed attempt should encourage you to invest in some serious study time so that you’ll be able to pass the examination on your next attempt A number of candidates have noted that the second attempt is much easier than the first Further, keep in mind that the reason Cisco Systems makes the written examination hard is to ensure that you are fully prepared for the challenging lab examination.

That’s it for pointers Here are some frequently asked questions about the written examination and some bonus FAQs on the lab examination.

Frequently Asked Questions about the CCIE R/S Examination

This section answers some common questions regarding the written and lab tions of the CCIE Routing and Switching examination These frequently asked questions will help dispel the confusion surrounding this exam We will begin by discussing the written examination.

por-1 How many questions are on the CCIE R/S written examination?

There are 100 questions All questions are multiple choice Some questions require a single answer, while other questions require more than one answer

to earn a point.

2 What is a passing score?

Cisco no longer publishes a set passing score for the written examination Instead, Cisco will supply you with a pass or fail grade The actual passing score (a percentage) is based on a statistical analysis system that checks the scores of all candidates over three months and then adjusts the score needed

to pass accordingly For example, the passing score for one candidate maybe

70 percent, but it may be 75 percent for another candidate, depending on what results candidates are attaining After completing a short survey prior

to the examination, you will be notified of the score you need to gain a

pass-ing grade For more information, see: www.cisco.com/warp/public/625/ccie/

exam_preparation/written.html#6

3 Can I change an answer after completing the examination?

Yes, as long as time remains, you can return to any question.

4 How long is the examination?

The exam is 2 hours (120 minutes) long Make sure you use your time wisely— you want to have an opportunity to answer as many questions as possible If you find you are spending too long on a single question, move on If time permits, you can return the difficult questions later.

5 What happens when I finish the examination?

The computer scores your test within minutes and indicates whether you passed or failed You will receive a printed score sheet with a grade for the entire exam and a percentage score for each of the 11 topics If you fail, you must wait at least 24 hours before retaking the exam.

6 Can I use the Windows calculator during the exam?

No You are not permitted to use any Windows tools You are supplied with

a pencil and some white paper or an erasable sheet.

7 How many times can I retake the written examination?

You can retake the exam as many times as you like.

You do not need to fax your test results to your nearest CCIE lab trator Simply wait 48 to 72 hours before calling to schedule the date for your lab examination Assuming that you have passed the written test, Cisco will have this information within two to three days.

adminis-9 Where can I find further information about the CCIE R/S exam?

Cisco provides additional FAQs online at www.cisco.com/warp/customer/

625/ccie/ccie_program/faqs.html.

Lab Examination FAQ

1 How many questions are on the CCIE lab examination?

There are three main sections The first lab section is worth 45 points ward your passing score of 80 points The second section is worth 30 points, and the final troubleshooting lab is worth 25 points The maximum number

to-of points is 100.

2 What is a passing score?

The minimum passing score is 80 percent for all candidates.

3 Can I change an answer after completing the examination?

After the lab proctor marks your exam, you cannot change any answers ther, you can only progress to the next section if you score the minimum requirement in each section Specifically, you must score at least 30 points on the first day, and you must have a total of 55 points before you can progress

Fur-to the final troubleshooting lab You should try Fur-to score as close Fur-to 100 cent on the first day to give yourself the best shot at passing the second day Every mark in the CCIE lab is difficult, so the more you gain on the first day the better position you will be to pass on the second day.

per-4 How long is the lab examination?

The examination is two full days.

5 What happens after I finish the examination?

The lab proctor will score your examination, and you will be told whether you have attained the minimum passing score You will not be told your exact score The CCIE program no longer provides candidates with passing

or failing scores.

6 Can I use the Windows calculator during the exam?

Yes Although, you are not permitted to save any device configurations.

You can retake the exam as many times as you like within one year of passing the written examination You must wait one month between lab attempts If you wait longer than one year to take the lab examination since passing the written exam, you must retake the written examination.

8 What happens after I pass the lab exam?

You receive your CCIE number, and you’ll receive a certificate and framed medal in the mail Finally, you will have access to the CCIE chat forum on

Cisco’s home page, www.cisco.com, as well as receive other privileges, such

as CCIE merchandising opportunities.

9 What material are you allowed to bring to the lab?

You are not permitted to bring any paper, books, or CD-ROMs into the lab You will be provided with a PC, the documentation CD, and configuration and command references.

Question 1

What layer of the OSI model is commonly referred to as frames? [Choose

the two best answers]

You have been assigned the network address 131.108.1.0/24 by the InterNIC

You are connected to a router running the IP routing protocol RIP What

Global IOS command will enable IP RIP on a Cisco router?

Simple Server Redundancy Protocol (SSRP) is used in what type

What is indicated when the DSAP and SSAP fields of an IEEE 802.2 header

are both set to ‘AA’?

❍ a Routing information is included in the packet

❍ b A SNAP header follows

❍ c The packet suffered a collision

❍ d The address was recognized and the frame accepted

Question 6

In a Token Ring data frame, why are the A and C bits copied in the frame

status field?

❍ a No such fields in Token Ring data frame

❍ b A=C=1 for all frames

❍ c The A and C bits are not copied—they represent different fields

❍ d These fields cannot hold an A or C bit

❍ e The A and C bits are copied to ensure integrity, because the FCS

field does not include them

Which of the following are not valid responses from a RADIUS server?

You try to enable OSPF on a Cisco router, and the following error displays:

OSPF: Could not allocate router id

What does this error message mean?

❍ a OSPF started normally after the error message

❍ b The router has no memory available

❍ c The router has no IP addressing

❍ d Both a and b

Question 11

Figure 11.1 Use this figure for Question 11

View Figure 11.1, RSRB is configured on Routers A and B Router A is

con-figured with the Virtual Ring 10 and Router B with the Virtual Ring 0x010

What is the RIF used by Device A to send data frames to Device B Assume

all source-route bridge numbers are set to 1?

Ring

Ring 2 Router A Router B

Virtual Ring 10

Virtual Ring 0x010

You type the following line when configuring a standard access list:

access-list 1 permit 0.0.0.0 255.255.255.255

What will the router display when you view the configuration?

❍ a access list 1 any

❍ b access-list 1 permit any

❍ c access-list 1 permit 0.0.0.0 255.255.255.255

❍ d There is insufficient information in the command syntax, so it will

be rejected by the router

Question 13

You have been asked to apply a policy route map to Serial 0 on a Cisco 2500

router What IOS command will complete this request if the route map used

is named Cisco? Assume you are in interface mode

❍ a Insufficient data

❍ b ip policy map Cisco

❍ c ip policy route-map cisco

❍ d ip policy route-map Cisco

Question 14

How frequently does Routing Table Maintenance Protocol (RTMP) send out

a full routing table?

Referring to the following BGP table, how was the network 10.1.1.0/24

discovered?

R1# show ip bgp

BGP table version is 4,local ID is 9.1.1.1

Status codes: s suppressed, d damped,

h history, * valid, > best, i - internal

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop MetricLocPrf Weight Path

*> 10.1.1.0/24 0.0.0.0 0 32768 I

❍ a Via external BGP

❍ b Via internal BGP

❍ c It is a locally connected interface

❍ d More data required

Question 16

What syntax is required to enable AppleTalk EIGRP routing?

❍ a appletalk routing

❍ b appletalk routing eigrp-1

❍ c appletalk routing eigrp <router-id>

❍ d no appletalk protocol RTMP

Question 17

On an Ethernet segment, two DECnet routers have the priority set to 100

The node addresses are 1.1 and 1.2 respectively Which router will become

the designated router?

❍ a The router with DECnet address 1.1

❍ b The router with DECnet address 1.2

❍ c No DR required in broadcast networks

❍ d More information required

Which of the following protocols use the Address Resolution Protocol (ARP)?

[Choose the two best answers]

Figure 11.2 Use this figure for Question 19

View Figure 11.2 What is the RIF from PC-A to PC-C as seen by PC-C?

Ring

Ring 2 Router A Router B

Virtual Ring 10

Virtual Ring 0x010 PC-B

What routing mechanisms can be used to resolve IP RIP’s ability to maintain

a common routing table throughout a large network? [Choose the three

When redistributing from RIP to OSPF (or vice versa) what must the

admin-istrator be careful with?

❍ a Nothing OSPF will manage redistribution

❍ b Ensuring metrics used by RIP are transferred to metrics used by

OSPF and vice versa

❍ c Ensuring that the process id is used to signify the RIP

administra-tive distance

❍ d Using BGP instead of OSPF

Token Ring Token

131.108.2.1/30 131.108.1.1/24

Figure 11.3 Use this figure for Question 23

View Figure 11.3 What OSPF configuration commands are required on the

router named Simon?

View the following configuration:

hostname R1

!

boot system flash

enable password ccie

What is the purpose of the ip access-group 100 in command?

❍ a Configures the access list to deny all inbound traffic on the serial 0

interface

❍ b Configures the router to permit all traffic, because access list 100

has not been defined

❍ c Specifies that the interface is not enabled for IP routing

❍ d Instructs the router to only permit packets from the network

152.108.10.0/24

What specification does IEEE 802.2 define?

❍ a Ethernet

❍ b Logical Link Control

❍ c Token Ring bus

❍ d Token Ring star

What is the difference between Ethernet II and 802.3?

❍ a Ethernet II was never released; 802.3 was released in 2000

❍ b Ethernet II specifies a type field; 802.3 specifies a protocol field

❍ c Ethernet II specifies a length field; 802.3 specifies a type field

❍ d Ethernet II specifies a type field; 802.3 specifies a length field

❍ e There is no difference between the two aside from the bit

transmission order

The administrator has deleted an IOS image on the bootflash, but when the

command show bootflash: is issued, the IOS image is still displayed What

must the administrator do to ensure the deleted image is no longer

dis-played?

❍ a Reload the router

❍ b Shutdown the bootflash interface

❍ c Issue the squeeze command

❍ d Nothing (this is a known bug)

Question 29

You have just changed the IP address on an active Ethernet interface from

10.10.1.1 to 10.10.1.2 You have exited the interface configuration mode,

and you are back in global configuration mode When is the change activated?

❍ a When you exit global configuration mode

❍ b When the router is reloaded

❍ c When you administratively shutdown the interface and then enable

the interface

❍ d Immediately

Question 30

You have just rebooted a router and pressed the control break sequence

within 60 seconds through the console port on a Cisco 2500 series router

What mode will the router boot into?

❍ a You must issue this sequence after 60 seconds, and not before

❍ b Global configuration mode

❍ c ROM mode

❍ d Engineering mode

❍ e None; the router will power up normally

Which of the following network classes contains the fewest available host

Which of the following protocols are used to route IP? [Choose the three

What is the bandwidth metric used if IGRP is used to route the following

Token Ring interface?

TokenRing0 is up, line protocol is up

Hardware is TMS380, address is 0000.308f.3655

Internet address is 20.20.20.1/24

MTU 4464 bytes, BW 4000 Kbit, DLY 630 usec,

rely 255/255, load 1/255

Encapsulation SNAP, loopback not set

ARP type: SNAP, ARP Timeout 04:00:00

Which of the following is not listed in the Routing Information Base?

❍ a Next hop address

It takes three TCP segments to open a TCP session How many segments

does it take to close a TCP session?