CCNA Official Cert Guide, Volume 2 presents you with an organized test preparation routine through the use of proven series elements and techniques. See the Where Are the Companion Files on the last page of your eBook file for instructions on how to access. In addition to the wealth of content, this new edition includes a series of free hands-on exercises to help you master several real-world configuration activities. These exercises can be performed on the CCNA Network Simulator Lite, Volume 2 software included for free on the companion website that accompanies this book.
The book contains an extensive set of preparation tools, including exam objectives, pre-assessments, topic overviews, Exam Alerts, Cram Savers, Cram Quizzes, chapter-ending practice questions, author notes and tips, and an expansive glossary.
The book also contains the extremely useful Cram Sheet tear-out: a collection of essential facts and numbers in an easy-to-review format. Complementing all these great study tools is the powerful Pearson IT Certification Practice Test software, complete with hundreds of exam-realistic practice questions. This assessment software offers you a wealth of customization options and reporting features, allowing you to test your knowledge in study mode, practice exam mode, or flash card mode.
Covers the critical information you'll need to know to score higher on your CCNA exam! CCNA Portable Command Guide is filled with valuable, easy-to-access information-and it's portable enough to use whether you're in the server room or the equipment closet.
The guide summarizes all CCNA certification-level Cisco IOS Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios.
Throughout, configuration examples give you a better understanding of how these commands are used in simple network designs.
This book has been completely updated to cover topics in the new exam. Use this quick reference resource to help you memorize commands and concepts as you work to pass the CCNA certification exam. Titles in the Cisco Press Certification Self-Study Product Family are part of a recommended learning program from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press.
Get certified and advance your technical career. To earn a Cisco Certified Network Associate CCNA certification, you only need to take one exam, which will validate your knowledge and skills related to everything from networking to automation. This inclusive, two-book set provides what you need to know to succeed on the new CCNA exam. Understanding Cisco Networking Technologies provides comprehensive information and foundational knowledge about core Cisco technologies, helping you implement and administer Cisco solutions.
Both books cover a range of topics so you can get ready for the exam and apply your technical knowledge. Prepare for testing on network and security fundamentals Review network access concepts Solidify your knowledge related to IP connectivity and services Assess your automation and programmability skills Written by a Cisco expert, Todd Lammle, this set helps you master the concepts you need to succeed as a networking administrator.
It also connects you to online interactive learning tools, including sample questions, a pre-assessment, practice exam, flashcards, and a glossary. If you want to earn the new CCNA certification and keep moving forward in your IT career, this book and study guide are for you. The practice exams, written by year industry professional Jon Buhagiar, explore a broad range of exam objectives essential for passing the certification exam. Each practice exam in this book is designed to prepare you to pass the CCNA by imparting the skills, knowledge, and practical coursework needed to master all exam topics.
This book includes access to six practice tests featuring 1, exam questions, as well as two full practice exams. Thoroughly updated for the current exam, this portable guide offers a complete day-by-day plan for what and how to study. Each day breaks down an exam topic into a short, easy-toreview summary, with Daily Study Resource quick-references pointing to deeper treatments elsewhere. Sign up for your exam now, and use this day-by-day guide and checklist to organize, prepare, review, and succeed!
Prepare to take the Cisco Certified Network Associate CCNA exam and get to grips with the essentials of networking, security, and automation Key Features Secure your future in network engineering with this intensive boot camp-style certification guide Gain knowledge of the latest trends in Cisco networking and security and boost your career prospects Design and implement a wide range of networking technologies and services using Cisco solutions Book Description In the dynamic technology landscape, staying on top of the latest technology trends is a must, especially if you want to build a career in network administration.
Once the passive open is established then a client may initiate an active open. To establish a connection, the 3-way or 3-step handshake occurs:The active open is performed by sending a SYN to the server. Finally the client sends an ACK back to the server. At this point, both the client and server have received an acknowledgement of the connection. Question 73 Explain what is mesh network? Question 74 Explain what is Protocol Data Unit? G Answer:- LAN uses different ways of communicating.
Its main function is to control the flow and error. Active Directory: AD is related to servers. It is directory where all users, groups,computers, network resources, list of users Admins and specialised users are recorded. Like AD is Centralised database where the managable data is fed and all the database elements, objects and classes are managed Read More Answers. When is it used? How is a bridge configured? What are the software and hardware components of a bridge? It is usually used to bridge 2 networks or even more in recent times Bridge is configured by having the the mac address of the switches connected directly to it.
O Answer:- RIP is one of the most enduring of all routing protocols. RIP is also one of the more easily confused protocols because a variety of RIP-like routing protocols M proliferated, some of which even used the same name!
RIP and the myriad RIP-like protocols were based on the same set of algorithms that use distance vectors to mathematically compare routes to identify the best path to any given destination address. Question 79 Explain what is the Network Time Protocol? Answer:- The Network Time Protocol NTP is a protocol for synchronising the clocks of computer systems over packet-switched, variable-latency data networks.
It is designed particularly to resist the effects of variable latency. Question 80 Explain what is subnet? Answer:- In topology and related areas of mathematics, a subnet is a generalization of the concept of subsequence to the case of nets. The definition is not completely straightforward, but is designed to allow as many theorems about subsequences to generalize to nets. A portion of a network that shares a common address component.
BGP is the routing protocol that runs the Internet. BGP is used to interconnect network islands ASs together. Also BGP is also known as a path vector protocol as it not only tells you how to get to a network IP prefix, but it shows you an AS path of the reachable network. There are two versions of the BGP protocol. G Answer:- The data unit created at the application layer is called a message, at the transport layer the data unit created is called either a segment or an user datagram, at the network layer the data unit created is called the datagram, at the data link layer the datagram is encapsulated in to a frame and finally transmitted as signals along the lo transmission media.
Answer:- lG Class A 0 - A transport protocol designed by microsoft and IBM for the use on small subnets. On an existing router, you would have already done this. M Router config ip dhcp pool mypool Specify the network and subnet for the addresses you want to use from the pool.
Router dhcp-config network 1. Router dhcp-config domain-name mydomain. Router dhcp-config dns-server 1. Router dhcp-config default-router 1. Router dhcp-config lease 7 Exit Pool Configuration Mode. Router dhcp-config exit This takes you back to the global configuration prompt. Next, exclude any addresses in the pool range that you don't want to hand out.
For example, let's say that you've decided that all IP addresses up to. All IP addresses above. Answer:- 10Base2 -An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband signaling, with a contiguous cable segment length of meters and a maximum of 2 segments. Question 87 Explain what is redirector? This comes under presentation layer. The standard protocol has been defined between the terminal and the PAD, called X.
Together, these three recommendations are often called "triple X" Read More Answers. Answer:- ui Server-based networkPeer-to-peer networkPeer-to-peer network, computers can act as both servers sharing resources and as clients using the resources. Server-based networks provide centralized control of network resources and rely on server computers to provide security and network administration Read More Answers.
Answer:- in It is a project started by IEEE to set standards that enable intercommunication between equipment from a variety of manufacturers. It is a way for specifying functions of the physical layer, the data link layer and to some extent the network layer to allow for interconnectivity of major LAN protocols.
It consists of the following Media access control MAC is the lower sublayer of the data link layer that contains some distinct modules each carrying proprietary information specific to the LAN product being used.
The modules are Ethernet LAN Question 91 Explain difference between bit rate and baud rate. Bit rate is the number of bits transmitted during one second whereas baud rate refers to the number of signal units per second that are required to represent those bits.
O Answer:- Please share your answers. M Read More Answers. It also handles both control and error messages. Question 93 Tell me can we use static and dynamic routing in one network? Answer:- As Saurabh said; we can use static and Dynamic Routing in one network.
However Dyanmic Routing is used to have the best path no matter what the status of the physical links. All routing protocols have some sort of shortest-path or lowest-cost or best-choice algorithm to help you weigh all the options available.
Static routing can be used in a small network to reduce the work of the network administrator or to use a particular route only to forward the packet; we need static routing.
Question 94 Tell me what are the advantages and disadvantages of the three types of routing tables? Answer:- The three types of routing tables are fixed, dynamic, and fixed central. The fixed table must be manually modified every time there is a change. A dynamic table changes its information based on network traffic, reducing the amount of manual maintenance.
A fixed central table lets a manager modify only one table, which is then read by other devices. The fixed central table reduces the need to update each machine's table, as with the fixed table. Usually a dynamic table causes the fewest problems for a network administrator, although the table's contents can change without the administrator being aware of the change. Answer:- The header should have a minimum length of 20 bytes and can have a maximum length of 60 bytes.
Answer:- ba Packet filter is a standard router equipped with some extra functionality. The extra functionality allows every incoming or outgoing packet to be inspected. Packets meeting some criterion are forwarded normally. Those that fail the test are dropped.
This sublayer is responsible for maintaining the link between computers when they are sending data across the physical network connection. Answer:- When hierarchical routing is used, the routers are divided into what we call regions, with each router knowing all the details about how to route packets to in destinations within its own region, but knowing nothing about the internal structure of other regions.
C Answer:- One of the main causes of congestion is that traffic is often busy. If hosts could be made to transmit at a uniform rate, congestion would be less common. Another open loop method to help manage congestion is forcing the packet to be transmitted at a more predictable rate.
This is called traffic shaping. O Question Explain what are Digrams and Trigrams? M Answer:- The most common two letter combinations are called as digrams. The most common three letter combinations are called as trigrams. Question Explain what is silly window syndrome in Computer Networks? Answer:- It is a problem that can ruin TCP performance. This problem occurs when data are passed to the sending TCP entity in large blocks, but an interactive application on the receiving side reads 1 byte at a time.
Question What is source route in Computer Networks? Answer:- It is a sequence of IP addresses identifying the route a datagram must follow. A source route may optionally be included in an IP datagram header. Answer:- It is a set of rules defining a very simple virtual terminal interaction. Answer:- The Default subnet mask for this Ip address is But the the subnet mask is Applications are user interfacing and is in a format understandable by the user. The application layer provides a user with various application services, which a user decides upon ui the communication.
Word is an application that a user users at the application layerTransport:This layer multiplexes data. The need for multiplexing, is that there could be many services that would want to communicate with different destinations. Along with this this layer also provides a user with different reliabilty modes depending upon the protocol usedNetwork:This layer is responsible for logical addressing to identify the network where the reciveing d station isData link:This layer is where the data gets another tag with the physical address of the device, to identify exactly what PC the data is destined to in the network identified by the network layer.
The physcial address often depends upon the technolgy that you are using ethernet, token ring, frame relay, PPP etc. Also the data gets split in to series of bits of 0s and 1s and sent to the lower layerPhysical:This is the layer where the data in form of bits recieved from the data link layer el gets transmitted in form of electrical signals to the destination Read More Answers. PDUs b. PRAMs d.
C Answer:- B. Peer Entities Read More Answers. Why do we use these techniques? VLAN's break up broadcast domains in layer 2 switch network. You can achieve this by using either a Layer 3 switch or a router. Answer:- State the technical steps required for data transmission from server to server via a router and switch Read More Answers. Question Suppose a person would like to access a file on another computer connected via LAN while working with safe mode.
What should he do? Question Tell me what is VPN? Question ba What does negotiation mean when discussing network protocols? Half-duplex devices let you send and receive, but only one-way at a time.
If you've ever used a walkie-talkie, then you know what half-duplex conversations sound like. You have to push the TALK button to send your message. But as long as you are holding the TALK key, you can't hear what anyone else is saying.
You must release the button to receive. Full duplex actually, full duplex is nothing new. In fact, you already know exactly what it sounds like. Your corded or cordless phones are full-duplex devices letting you and your caller speak simultaneously without any dropouts in either one of your voices. Half- and Full-Duplex ModeEach switch port can operate in either half-duplex or full-duplex mode. As a result, when the switch is connected to another network ui device that is capable of autonegotiation, the two devices communicate common speeds and duplex modes to each other.
Then, the highest common capabilities for both devices become the operating modes. The switch has the following operating priorities To reduce attenuation, repeaters are used to boost the signal strength.
Question IP though unreliable it implements routing of network information across the nodes upto the destination. But TCP cannot do this it implements O only the end-to-communication i. M Question Explain what are the important topologies for networks? Answer:- BUS topology: In this each computer is directly connected to primary network cable in a single line.
Advantages: Inexpensive, easy to install, simple to understand, easy to extend. STAR topology:In this all computers are connected using a central hub. Advantages: Can be inexpensive, easy to install and reconfigure and easy to trouble shoot physical problems. RING topology: In this all computers are connected in loop. Advantages: All computers have equal access to network media, installation can be simple, and signal does not degrade as much as in other topologies because each computer regenerates it.
Question Tell us why do we have a minimum and maximum cable length requirement? Answer:- The min and max cable length is required because the signals can travel effectively without loosing their strength to that extent you can increase the cable length apart from preferred by using the repeaters after the length so that the signals will be boosted again.
Question What is cladding in Computer Networks? Common cladding materials include vinyl and extruded or roll-formed aluminum Read More Answers. Question G Explain what is passive topology? Answer:- When the computers on the network simply listen and receive the signal, they are referred to as passive because they don't amplify the signal in any way. Example for lo passive topology - linear bus. Answer:- lG. In an Exchange environment, using. Think of this as a type of email cache file.
This leaves the emails on the server, but also stores a copy of emails since your last sync on the local machine. Question d Suppose you have been given 1 printer and 1 IP Address for installing it in a Networking Environment How will you do it? The printer is now ready to use. Because it is considered to be the most efficient IGP interior gateway protocol. Question What is the difference between routable and non- routable protocols?
Answer:- Routable protocols can work with a router and can be used to build large networks. Non-Routable protocols are designed to work on small, local networks and cannot be used with a router Read More Answers.
Question How many levels of signalling is possible with such modulation, in other words what is the number of symbols? Answer:- Please share your views. Answer:- Short for Media Access Control address, a hardware address that uniquely identifies each node of a network. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a different MAC layer. In a session 2.
Practice tests help in consolidating your concepts, preparation and also as exam cram. NetSim has the ability to guide and grade, and using it for practice can actually be more helpful than using real routers and switches.
NetSim allows you to gain experience without requiring you to purchase expensive equipment. CCNA Certification. If you are working in an organization and you find it difficult to prepare for the Cisco CCNA exam, then you should check out the Cisco Certified Network Our Cisco Certified Network Associate experts have created detailed pdf questions answer sheet that will help you clear Cisco CCNA test on your first attempt.
Make sure that you are using these pdf dumps files and focusing on the preparation level so you can improve things for yourself. Lead4pass exam questions and answers are written by the most reliable Cisco CCNA professionals.
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