640-802 – CCNA: ICND1 and ICND 2 practice test

Pass 640-802 exam in the first attempt. 6 Full featured Tests. 561 questions with answers and 191 study notes articles and exam tips.

PrepKit 640-802, CCNA: ICND1 and ICND 2 is an interactive software that helps you learn, tracks your progress, identifies areas for improvements and simulates the actual exam. This PrepKit contains 6 interactive practice tests with over 561 challenging questions guaranteed to comprehensively cover all the objectives for the 640-802: CCNA: ICND1 and ICND 2 exam. With detailed analysis for each question, over 191 study notes, interactive quizzes, tips and technical articles, this PrepKit ensures that you get a solid grasp of core technical concepts to ace your certification exam.
What is CCNA 640-802 exam?
Cisco’s CCNA 640-802 exam is an entry-level, single option exam for achieving the CCNA Certification. It validates your ability to Configure, verify and troubleshoot switches, Identify security threats to a network and to mitigate those threats and Implement, verify, and troubleshoot networks in a medium-size Enterprise branch office network. Passing this test will also help you in achieving the CCNP and CCIE certifications.

You can also get the CCNA certification through a two tests option. For this, you have to take tests 640-822 and 640-816.

Is CCNA 640-802 exam right for you?
The 640-802 test is appropriate for you if you have a basic understanding of computers and networking technology. There are no specific prerequisites for this test, although it is recommended that you should have at least some experience in implementing and administering networks.

This test is suitable for you if you want to work as a Network administrator, System Analyst or Network Support Professional. If you would like to know more about this test please visit the Cisco 640-802 exam page.

What to expect in CCNA 640-802 exam?
This test consists of multiple choice, drag and drop, and simulation style questions. There is also Case study type and exhibit based questions. You will be required to attempt approximately 50-60 questions in 90 minutes. Cisco does not publish the pass score for the exam but it is generally considered that the passing score is 849 out of 1000.

How to prepare for 640-802 exam?
We designed 640-802 preparation kit to help you get certified effortlessly. Now you don’t need to spend your time and money searching for study materials, books, etc., this CCNA: ICND1 and ICND 2 exam preparation kit contains everything you need to get certified. Just follow the instructions, focus on the study material and getting certified will be easy.

Don’t take our word for it, decide the quality of our PrepKit yourself. Download the trial version of the PrepKit now to get over 30 questions and 40 study notes, absolutely free. Once you are convinced, you can buy this PrepKit to get all questions and study notes. And of course, we trust our PrepKits so much that all our PrepKits are backed with a full money back guarantee in case you do not pass the CCNA: ICND1 and ICND 2 exam.

What is covered in PrepKit 640-802?
The PrepKit covers 100% objectives for Cisco 640-802: CCNA: ICND1 and ICND 2 exam, in accordance with actual exam pattern and question types. Number of practice questions and study notes for each exam objective is as follows

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QUESTION 36:
Which fields are included in the TCP header? (Choose three).
A. Source Port
B. Acknowledgement Number
C. Request Number
D. Destination Address
E. Window
F. Data
Answer: A, B, E
Explanation:
TCP header:
Source Port: 16 bits.
Destination Port: 16 bits.
Sequence Number: 32 bits.
The sequence number of the first data byte in this segment. If the SYN bit is set, the
sequence number is the initial sequence number and the first data byte is initial sequence
number + 1.
Acknowledgment Number: 32 bits.
If the ACK bit is set, this field contains the value of the next sequence number the sender
of the segment is expecting to receive. Once a connection is established this is always
sent.
Data Offset: 4 bits.
The number of 32-bit words in the TCP header. This indicates where the data begins. The
length of the TCP header is always a multiple of 32 bits.
Reserved: 3 bits.
Must be cleared to zero.
ECN, Explicit Congestion Notification: 3 bits.
Added in RFC 3168.
Control Bits: 6 bits.
Window: 16 bits, unsigned.
The number of data bytes beginning with the one indicated in the acknowledgment field
which the sender of this segment is willing to accept.
Checksum: 16 bits.
This is computed as the 16-bit one’s complement of the one’s complement sum of a
pseudo header of information from the IP header, the TCP header, and the data, padded
as needed with zero bytes at the end to make a multiple of two bytes.
Urgent Pointer: 16 bits, unsigned.
If the URG bit is set, this field points to the sequence number of the last byte in a
sequence of urgent data.
Options: 0 to 44 bytes.
Options occupy space at the end of the TCP header. All options are included in the
checksum. An option may begin on any byte boundary. The TCP header must be padded
with zeros to make the header length a multiple of 32 bits.
Data: Variable length.
QUESTION 37:
Acknowledgements, sequencing, and flow control are functions that are handled by
which layer of the OSI model?
A. Layer 5
B. Layer 4
C. Layer 7
D. Layer 6
E. Layer 3
F. Layer 2
G. Layer 1
Answer: B
QUESTION 38:
A receiving host has failed to receive all of the segments that it should acknowledge.
What can the host do to improve the reliability of this communication session?
A. Start a new session using UDP
B. Obtain a new IP address from the DHCP server
C. Use a different source port for the session
D. Decrease the sequence number
E. Decrease the window size
Answer: E

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