TheoryCCNA Network Exam Prep Study Guide
Study for the CCNA Network Exam Prep with exam topics, practice questions, a free PDF, video walkthrough and timed mock exam links.
How to study for CCNA Network Exam Prep 2026
- Read the topic list so you know what the exam is likely to cover.
- Answer the free practice questions and read every explanation.
- Download the PDF for offline review.
- Use timed mock exams when your untimed practice feels comfortable.
Topics to review
- The core topics and terminology you'll be tested on
- Rules, standards and best-practice procedures
- Real-world scenarios and how to respond
- Common mistakes and how to avoid them
Try CCNA Network Exam Prep 2026 questions now
Q1What is the prefix for the following IPv6 address: 2001:0db8:85a3::8a2e:0370:7334 / 48?
Show answer
✓ Correct answer: 2001:0db8:85a3:: / 48
To identify the prefix (subnet ID) in an IPv6 address with a prefix length that is divisible by 4, take the prefix length and divide it by 4 to find the number of hex digits that are in the prefix. Then, change all hex digits after that and change them to 0. If the prefix length is 48, then the first 12 digits are in the prefix.
Q2Which statement correctly explains a characteristic of a fiber-optic point-to-point network?
Show answer
✓ Correct answer: It provides a dedicated communication path between two devices.
Answer: It provides a dedicated communication path between two devices. A fiber-optic point-to-point network creates a direct communication link between two devices, ensuring high-speed data transfer with minimal interference. This is different from shared media networks, where multiple devices share the same communication medium.
Q3What are three disadvantages of using wireless connections for connecting remote branch offices to the main office network? (Choose three.)
Show answer
✓ Correct answer: Bandwidth limitations
Using wireless connections to connect remote branch offices can be convenient, but it comes with several drawbacks. One major drawback is interference, since wireless signals can be easily affected by other devices and obstacles, leading to poor performance. Security is another significant issue because wireless signals can be intercepted more easily than wired connections, increasing the risk of data breaches. Bandwidth limitations are also a common problem, as wireless networks often cannot support as much data throughput as wired connections. However, ease of installation is an advantage of using wireless technology, because it requires less physical infrastructure.
Q4Which of the following has the highest data transmission rate?
Show answer
✓ Correct answer: Fiber optic cable
Answer: Fiber optic cable Fiber optic cables can transmit data at speeds of up to 100 Gbps and beyond, depending on the technology used. Ethernet over twisted pair cables (e.g., CAT5, CAT6) typically support speeds up to 1 Gbps or 10 Gbps. 4G wireless technologies generally support data rates up to 100 Mbps, while 5 GHz Wi-Fi can reach up to 1 Gbps. However, these technologies are still slower compared to fiber optic cables.
Q5Which two statements accurately describe the characteristics of IPv6 unique local addresses? (Choose two.)
Show answer
✓ Correct answer: They are not routable on the global Internet.
IPv6 unique local addresses are used for local communication within a site or organization and are not routable on the global Internet. They start with the prefix FC00::/7. Unique local addresses are analogous to IPv4 private addresses.
Q6Which two statements are true about Network Address Translation (NAT)? (Choose two.)
Show answer
✓ Correct answer: NAT conserves global address space by using a single public IP address for multiple devices.
Network Address Translation (NAT) is a method used to remap IP address spaces by modifying network address information in IP header packets while they are in transit. There are several types of NAT, such as static, dynamic, and PAT (Port Address Translation). NAT can conserve global addresses by enabling multiple devices on a local network to access the internet using a single public IP address. It also adds a layer of security by concealing internal IP addresses.
Full CCNA Network Exam Prep 2026 bank + unlimited mocks
Try 30 questions free. Unlock the complete CCNA Network Exam Prep 2026 question bank, every explanation, and unlimited timed mock exams. Practice on any device.
Unlock CCNA Network Exam Prep 2026 →