Juniper Updated JN0-106 Exam Questions and Answers by heather

To determine which prefixes contain 192.168.3.29 , calculate the address range represented by each subnet mask.

A /22 prefix uses subnet mask 255.255.252.0 , producing blocks of four in the third octet. Therefore, 192.168.0.0/22 covers 192.168.0.0 through 192.168.3.255 . The address 192.168.3.29 falls within this range, making A correct .

A /28 uses mask 255.255.255.240 , creating blocks of 16 addresses. 192.168.3.0/28 covers 192.168.3.0 through 192.168.3.15 . Since 192.168.3.29 is outside this interval, B is incorrect .

A /23 uses mask 255.255.254.0 , creating blocks of two in the third octet. 192.168.2.0/23 covers 192.168.2.0 through 192.168.3.255 , so 192.168.3.29 is included , making C correct .

Finally, a /21 uses eight-value blocks in the third octet. The prefix represented by 192.168.252.0/21 belongs to the 192.168.248.0–192.168.255.255 range and therefore cannot contain 192.168.3.29.

Study Guide Reference Topics: Networking Fundamentals — IPv4 addressing, subnet masks, CIDR notation, subnet boundaries, and prefix-range calculations.

Comprehensive and Detailed 150 to 250 words of Explanation From: The Transmission Control Protocol (TCP) is a core transport-layer protocol within the TCP/IP suite designed to provide a highly reliable, connection-oriented service. Unlike the User Datagram Protocol (UDP), which is connectionless and best-effort, TCP ensures that data is delivered accurately and in the correct order. A defining characteristic of TCP is its use of a three-way handshake to establish a session. This process involves the exchange of SYN, SYN-ACK, and ACK segments, which synchronizes sequence numbers between the two endpoints and ensures both hosts are ready for data transfer.

Furthermore, TCP provides reliable, ordered delivery by utilizing sequence numbers and acknowledgments. Each data segment is assigned a sequence number; the receiving host uses these numbers to reassemble the data in its original order, even if segments arrive out of sequence due to network jitter or multiple paths. If a segment is lost, the lack of a timely acknowledgment triggers a retransmission, guaranteeing that the application receives all data. TCP does not provide fixed latency guarantees, as its error-recovery mechanisms can introduce delays. Additionally, TCP is a unicast-only protocol and does not support broadcasting on Ethernet. Reference: Networking Fundamentals, Transport Layer Protocols, TCP vs. UDP.

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