Cisco 640-821 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Introduction to Cisco Networking Technologies |
| Exam Number: | 640-821 |
| Related Certifications: | Cisco CCNA (two-exam option) |
| Available Languages: | English |
| Exam Format: | Simulation, Multiple Choice |
| Sample Questions: | Cisco 640-821 Sample Questions |
| Exam Way: | Onsite at Pearson VUE (historical practice for Cisco exams) |
| Pre Condition: | None formally published; designed as introductory exam before CCNA or as part of CCNA two-exam path. :contentReference[oaicite:0]{index=0} |
Cisco 640-821 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Networking Fundamentals | - Network types and components - OSI and TCP/IP models |
| Topic 2: Switching Fundamentals | - LAN switching concepts - VLAN basics |
| Topic 3: Network Management and Troubleshooting | - Network monitoring basics - Basic troubleshooting techniques |
| Topic 4: IP Addressing and Routing Basics | - Basic routing concepts - IPv4 addressing and subnetting |
| Topic 5: Network Media and Topologies | - WAN technologies overview - Ethernet LAN technologies |
| Topic 6: Cisco IOS and Device Operation | - Basic device configuration - Cisco IOS navigation and commands |
Cisco Introduction to Cisco Networking Technologies Sample Questions:
WAN data link encapsulation types include which of the following? (Choose two.)
- A. ISDN
- B. T1
- C. PPP
- D. Frame Relay
- E. DSL
Correct Answer: C,D 🗳️
Refer to the exhibit. If host A sends an IP packet to host B, what will the source physical address be in the frame when it reaches host B?
- A. A1:A1:A1:A1:A1:A1
- B. D4:D4:D4:D4:D4:D4
- C. 10.168.11.88
- D. 10.168.10.99
- E. C3:C3:C3:C3:C3:C3
- F. B2:B2:B2:B2:B2:B2
Correct Answer: E 🗳️
How many simultaneous Telnet sessions does a Cisco router support by default?
- A. 2
- B. 3
- C. 6
- D. 5
- E. 1
- F. 4
Correct Answer: D 🗳️
What is the subnet address of 172.16.159.159/22?
- A. 172.16.0.0
- B. 172.16.156.0
- C. 172.16.192.0
- D. 172.16.159.0
- E. 172.16.159.128
- F. 172.16.128.0
Correct Answer: B 🗳️
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