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Cisco 640-822 Exam
Exam 640-822: Interconnecting Cisco Networking Devices Part 1 (ICND1)

Number of questions: 50-60

Duration: 90 minutes

Cost:  $125, Available at Pearson VUE Testing Centers

Exam Topics Include:

1.  Describe the operation of data networks, including the operation of TCP/IP

2.  Implement a small switched network.

3.  Implement an IP addressing scheme and IP Services to meet network requirements in a small branch office network.

4.  Implement a small routed network, including Cisco router IOS.

5. Explain and select the appropriate administrative tasks required for a WLAN, including WLAN standards.

6. Identify security threats to a network and describe general methods to mitigate those threats

7.  Implement and verify WAN links, including basic serial connections

The 640-822 Interconnecting Cisco Networking Devices Part 1 (ICND1) exam is associated with the Cisco Certified Entry Network Technician certification and a tangible first step in achieving the Cisco Certified Network Associate certification. This exam tests a candidate’s knowledge and skills required to successfully install, operate, and troubleshoot a small branch office network. Passing this exam will earn you the Cisco CCENT (Cisco Certified Entry Networking Technician) certification.  This certification validates the skills required for entry-level network support positions and can be used as the starting point for many successful careers in networking. Candidates should have the knowledge and skill to install, operate and troubleshoot a small enterprise branch network, including basic network security. CCENT certification is the first step toward achieving CCNA, which covers medium size enterprise branch networks with more complex connections.  Passing this exam, along with the ICND Part 2 (640-816) exam, will earn you the CCNA certification.

The TestKing 640-822 exam products are designed to maximize your learning productivity and focus only on the important aspects that will help you to pass your exam.  We will provide you with exam questions and verified answers, with detailed explanations, that reflect the actual exam. These questions and answers provide you with the experience of taking the actual test. Our exam guides are not just questions and answers. Our questions have detailed explanations provided by our certified industry experts, ensuring that you fully understand the questions and the concept behind the questions.

QUESTION 27:
As the Certkiller network administrator, you are required to have a firm
understanding of the OSI model. Why does the data communication industry use
the layered OSI reference model? (Choose two)
A. It enables equipment from different vendors to use the same electronic components,
thus saving research and development funds
B. It encourages industry standardization by defining what functions occur at each layer
of the model
C. It divides the network communication process into smaller and simpler components;
thus aiding component development, design and troubleshooting
D. It provides a means by which changes in functionality in one layer require changes in
other layers
E. It supports the evolution of multiple competing standards and thus provides business
opportunities for equipment manufacturers
Answer: B, C
Explanation:
The OSI (Open System Interconnection) reference model was created as a reference point
for communications devices. A layered approach is used to segment the entire
telecommunications process into a series of smaller steps.
A is correct because it encourages a level of standardization by encouraging that
functions be compared to known layers. D is also correct because it allows engineers to
focus on the development, refining, and perfection of simpler components.
QUESTION 28:
Which of the protocols below use TCP at the transport layer? (Select four)
A. TFTP
B. SMTP
C. SNMP
D. FTP
E. HTTP
F. HTTPS
Answer: B, D, E, F
Explanation:
SMTP (Simple Mail Transfer Profile for email), FTP (File Transfer Protocol), and
HTTP/HTTPS (Hyper Text Transfer Protocol for internet) all use TCP because of the
reliable delivery mechanism. SMTP uses TCP port 25, FTP uses TCP ports 20 and 21,
HTTP uses TCP port 80, and HTTPS uses TCP port 443.
Incorrect Answers:
A, C: SNMP and TFTP use UDP as the transport mechanism. Generally speaking,
protocols that use the keywords “trivial” or “simple” uses UDP, since connectionless,
best effort delivery mechanism usually suffice.
Reference: CCNA Self-Study CCNA INTRO exam certification Guide (Cisco Press,
ISBN 1-58720-094-5) Page 163.
QUESTION 29:
Exhibit:
The exhibit above displays the partial contents of an encapsulation header.
Which of the following are true of the network traffic represented in this diagram?
(Select three)
A. This is a UDP header
B. This is an OSI layer 4 header.
C. This is traffic from an FTP server.
D. This is traffic from an Telnet client.
E. The last PDU received in this session had a sequence number of 292735.
Answer: B, C, E

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