- Exam Code: 100-105
- Exam Name: Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0)
- Updated: Oct 20, 2026
- Q & A: 832 Questions and Answers
Cisco 100-105 actual dump : Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0)
PDF Version DemoAbout Cisco 100-105 Exam Questions
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Cisco 100-105 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0) |
| Exam Number: | 100-105 |
| Exam Price: | 165 USD |
| Exam Format: | Drag-and-Drop, Multiple Choice Multiple Answer, Simulations, Multiple Choice Single Answer, Simlets, Testlets |
| Exam Duration: | 90 (plus 30 minutes for non-native English speakers) |
| Available Languages: | Spanish, Japanese, English |
| Passing Score: | 800–850 (scale 300–1000, subject to change) |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 45–55 |
| Related Certifications: | CCNA Routing and Switching ICND2 v3.0 (200-105) |
| Recommended Training: | Cisco Learning Network Cisco ICND1 v3.0 Official Course |
| Exam Registration: | Pearson VUE Cisco Exam Registration |
| Sample Questions: |  |
| Exam Way: | Onsite at Pearson VUE testing centers; online proctored option available |
| Pre Condition: | No formal prerequisites; basic IP knowledge recommended |
| Official Syllabus URL: | https://learningnetwork.cisco.com/s/icnd1-v3-0-exam-topics |
Cisco 100-105 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Infrastructure Maintenance | 14% | - Use Cisco IOS tools to troubleshoot problems - Manage Cisco IOS files and licensing - Monitor device performance - Troubleshoot connectivity issues - Configure and verify syslog - Configure and verify device management |
| Routing Fundamentals | 25% | - Configure and verify RIPv2 - Configure and verify IPv4 and IPv6 static routing - Describe the operation of OSPFv3 - Configure and verify single-area OSPFv2 - Describe routing concepts - Interpret routing table components |
| Network Fundamentals | 20% | - Describe the purpose and functions of various network devices - Describe Ethernet technologies and media types - Describe OSI and TCP/IP models - Select components required to meet a network specification - Configure, verify, and troubleshoot IPv4 and IPv6 static routing - Describe IPv4 addressing and subnetting - Describe IPv6 addressing |
| Infrastructure Services | 15% | - Configure and verify DHCPv6 - Configure and verify DHCPv4 - Describe network security concepts - Configure and verify NAT for IPv4 - Describe DNS operations - Configure and verify NTP |
| LAN Switching Fundamentals | 26% | - Configure and verify trunking - Describe and verify switching concepts - Describe and verify STP operation - Configure and verify port security - Configure and verify VLANs - Configure and verify interswitch connectivity |
Questions Candidates Ask About the Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0)
Plan on needing 800–850 (scale 300–1000, subject to change) to pass the 100-105 exam, and budget 165 USD for the official registration. Treat that fee as single-use: a failed attempt means paying the same amount again for a retake. The cheapest insurance policy is preparation — cycle through the 832 practice questions at Actual4Dumps until your timed mock results clear the passing mark consistently, and only then schedule your exam.
For the Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0), Cisco points candidates toward these resources:
Training builds the foundation; deliberate practice builds the pass. Layer the 832 practice questions from Actual4Dumps on top of any course above, and you cover theory and execution in one plan.
The Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0) blueprint spans 5 domains. The heaviest hitters include Infrastructure Maintenance (14%), LAN Switching Fundamentals (26%), and Network Fundamentals (20%). The complete breakdown — every domain and subtopic — is laid out in the syllabus section above, and that is the map your study sessions should follow.
Expect 45–55 questions and 90 (plus 30 minutes for non-native English speakers) on the clock for the 100-105 exam. Time management is a skill of its own here: candidates who untimed-study often discover the real pressure only when the countdown starts. Build that muscle memory early — run full timed simulations in the Actual4Dumps desktop or online test engine, practice flagging and skipping, and let pacing become reflex before exam day.
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What does the Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0) exam actually test?
Formally known as the Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0), the 100-105 exam is Cisco's way of certifying that you can apply its technologies to real-world problems — pass it, and you hold the Cisco Certified Entry Networking Technician (CCENT); contributes to CCNA Routing and Switching certification, a Entry / Associate-level credential. Because it is vendor-backed and skills-driven, employers treat it as proof rather than promise. It also feeds into a wider path that includes CCNA Routing and Switching, ICND2 v3.0 (200-105).
Book your Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0) seat through these official channels:
One practical note: the 100-105 exam is delivered Onsite at Pearson VUE testing centers; online proctored option available, so factor that into which slot you choose.
There is — Actual4Dumps publishes a free PDF demo of the 100-105 materials, so you can verify the accuracy and relevance of the questions before committing a cent. Buying unlocks 365 days of free updates on top of the full question bank, and if your product ever expires, the update service renews at a 50% discount from your member zone.
No formal prerequisites; basic IP knowledge recommended
Requirements like these evolve, so before locking in an exam date, double-check the current rules on the official Cisco exam page.
Cisco Interconnecting Cisco Networking Devices Part 1 (ICND1 v3.0) Sample Questions:
Question #1
Lab Simulation - CLI Configuration
Attention:
In practical examinations, please note the following, the actual information will prevail.
1. Name of the router is xxx
2. Enable. secret password is xxx
3. Password In access user EXEC mode using the console is xxx
4. The password to allow telnet access to the router is xxx
5. IP information
Correct Answer:
Router>enable
Router#config terminal
Router(config)#hostname Gotha
2) Enable-secret password (cisco10):
Gotha(config)#enable secret mi222ke
3) Set the console password to G8tors1:
Gotha(config)#line console 0
Gotha(config-line)#password G8tors1
Gotha(config-line)#login
Gotha(config-line)#exit
4) Set the Telnet password to dun63lap:
Gotha(config)#line vty 0 4
Gotha(config-line)#password dun63lap
Gotha(config-line)#login
Gotha(config-line)#exit
5) Configure Ethernet interface (on the right) of router Gotha:
Ethernet network 209.165.201.0 /27 - Router has the fourth assignable host address in subnet.
Ethernet Interface on router R2 is Fast Ethernet 0/0 as per the exhibit First we need to identify the subnet mask Network: 209.165.201.0 /27 Subnet mask: /27: 27 bits = 8 + 8 + 8 + 3
=8(bits).8(bits).8(bits) .11100000 (3bits)
=255.255.255.11100000
=11100000 = 128+64+32+0+0+0+0+0
= 224
Subnet mask: 255.255.255.224
Different subnet networks and there valid first and last assignable host address range for above subnet mask are Subnet Networks :::::: Valid Host address range :::::: Broadcast address
209.165.201.0 :::::: 209.165.201.1 - 209.165.201.30 ::::: 209.165.201.31
209.165.201.32 :::::: 209.165.201.33 - 209.165.201.62 ::::: 209.165.201.63
209.165.201.64 :::::: 209.165.201.65 - 209.165.201.94 :::::: 209.165.201.95
209.165.201.96 :::::: 209.165.201.97 - 209.165.201.126 :::::: 209.165.201.127
209.165.201.128 :::::: 209.165.201.129 - 209.165.201.158 :::::: 209.165.201.159
209.165.201.160 :::::: 209.165.201.161 - 209.165.201.190 :::::: 209.165.201.191
209.165.201.192 :::::: 209.165.201.193 - 209.165.201.222 :::::: 209.165.201.223
209.165.201.224 :::::: 209.165.201.225 - 209.165.201.254 :::::: 209.165.201.255 Use above table information for network 209.165.201.0 /27 to identify First assignable host address: 209.165.201.1 Last assignable host address: 209.165.201.30 Fourth assignable host address: 209.165.201.4 Assign the fourth assignable host address to Fa0/0 interface of Gotha router:
Gotha(config)#interface Fa0/0
Gotha(config-if)#ip address 209.165.201.4 255.255.255.224
Gotha(config-if)#no shutdown
Gotha(config-if)#exit
6) Configure Serial interface (on the left) of router Gotha:
Serial Network is 192.0.2.176 /28 - Router has the last assignable host address in subnet.
Serial Interface on R2 is Serial 0/0/0 as per the exhibit
First we need to identify the subnet mask
Network: 192.0.2.176 /28
Subnet mask: /28: 28bits = 8bits+8bits+8bits+4bits
=8(bits).8(bits).8(bits) .11110000 (4bits)
=255.255.255.11100000
=11100000 = 128+64+32+16+0+0+0+0
= 240
Subnet mask: 255.255.255.240
Different subnet networks and there valid first and last assignable host address range for above subnet mask are Subnet Networks ::::: Valid Host address ::::::::::: Broadcast address
192.0.2.0 :::::: 192.0.2.1 - 192.0.2.14 ::::::: 192.0.2.15
192.0.2.16 ::::::: 192.0.2.17 - 192.0.2.30 ::::::: 192.0.2.31
192.0.2.32 :::::::: 192.0.2.33 - 192.0.2.46 :::::: 192.0.2.47
192.0.2.48 :::::: 192.0.2.49 - 192.0.2.62 ::::::: 192.0.2.64
192.0.2.64 ::::::: 192.0.2.65 - 192.0.2.78 ::::::: 192.0.2.79
192.0.2.80 :::::::: 192.0.2.81 - 192.0.2.94 :::::: 192.0.2.95
192.0.2.96 :::::: 192.0.2.97 - 192.0.2.110 ::::::: 192.0.2.111
192.0.2.112 ::::::: 192.0.2.113 - 192.0.2.126 ::::::: 192.0.2.127
192.0.2.128 :::::::: 192.0.2.129 - 192.0.2.142 :::::: 192.0.2.143
192.0.2.144 :::::: 192.0.2.145 - 192.0.2.158 ::::::: 192.0.2.159
192.0.2.160 ::::::: 192.0.2.161 - 192.0.2.174 ::::::: 192.0.2.175
192.0.2.176 :::::::: 192.0.2.177 - 192.0.2.190 :::::: 192.0.2.191
and so on ....
Use above table information for network 192.0.2.176 /28 to identify
First assignable host address: 192.0.2.177
Last assignable host address: 192.0.2.190
We need to configure Last assignable host address (192.0.2.190) on serial 0/0/0 using the subnet mask 255.255.255.240 Assign the last assignable host address to S0/0/0 interface of Gotha router:
Gotha(config)#interface S0/0/0 (or use interface S0/0 if not successful) Gotha(config-if)#ip address 192.0.2.190 255.255.255.240 Gotha(config-if)#no shutdown Gotha(config-if)#exit
7) Configure RIP v2 routing protocol:
Gotha(config)#router rip
Gotha(config-router)#version 2
Gotha(config-router)#network 209.165.201.0
Gotha(config-router)#network 192.0.2.176
Gotha(config-router)#end
Save the configuration:
Gotha#copy running-config startup-config
Finally, you should use the ping command to verify all are working properly!
Question #2
Which difference between TCP and UDP is true?
- A. Only TCP orders the packets that are transmitted.
- B. Only UDP retransmits packets to ensure delivery.
- C. Only TCP has eliminated error checking.
- D. Only UDP requires recipients to acknowledge packet receipt.
Correct Answer: A 🗳️
Question #3
Drag and Drop Question
A host is send no packets to a router. Drag and drop the steps in the packet-handling process from the left in to the correct sequence on the right.
Correct Answer:
Question #4
Refer to the exhibit. The two routers have had their startup configurations cleared and have been restarted. At a minimum, which option below must the administrator do to enable CDP to exchange information between R1 and R2?
- A. Enter no shutdown commands on the R1 and R2 fa0/1 interfaces.
- B. Configure IP addressing and no shutdown commands on either of the R1 or R2 fa0/1 interfaces.
- C. Configure the router with the cdp enable command.
- D. Configure IP addressing and no shutdown commands on both the R1 and R2 fa0/1 interfaces.
Correct Answer: A 🗳️
Question #5
Which device can be used to extend the LAN without using layer3 device?
- A. Firewall
- B. Wireless controller
- C. Switch
- D. Access point
Correct Answer: D 🗳️
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