Latest [Aug 07, 2024] 100% Passing Guarantee - Brilliant JN0-105 Exam Questions PDF
JN0-105 Certification – Valid Exam Dumps Questions Study Guide! (Updated 98 Questions)
Juniper JN0-105 Exam Syllabus Topics:
| Topic | Details |
|---|---|
| Topic 1 |
|
| Topic 2 |
|
| Topic 3 |
|
| Topic 4 |
|
NEW QUESTION # 34
Which protocol would you configure to synchronize the time and date on a Junos device?
- A. SNMP
- B. NTP
- C. NMP
- D. RIP
Answer: B
Explanation:
The Network Time Protocol (NTP) is designed to synchronize the clocks of computers over a network.
Configuring NTP on a Junos device ensures that its clock is set accurately, which is crucial for logging, troubleshooting, and maintaining the integrity of time-sensitive operations and security protocols. NTP allows devices to use a hierarchy of time sources, from primary servers synchronized to a reference clock (such as an atomic clock or GPS time) to secondary servers that distribute the time to other devices on the network.
NEW QUESTION # 35
Which two statements are correct about a Routing Engine? (Choose two.)
- A. It maintains routing tables.
- B. It processes management traffic.
- C. It processes CoS marked traffic.
- D. It forwards transit traffic.
Answer: A,B
Explanation:
The Routing Engine (RE) in Juniper Networks devices plays a pivotal role in the control plane, handling tasks that are critical for the operation and management of the network. One of its key functions is processing management traffic, which includes user commands, system configuration, and monitoring operations. The RE also maintains routing tables, which are essential for network routing decisions. These tables contain network topology information and routing paths, which the RE uses to update the Packet Forwarding Engine (PFE) so that it can forward packets appropriately. The RE does not forward transit traffic or process Class of Service (CoS) marked traffic, as these tasks are handled by the PFE.
NEW QUESTION # 36
You have logged on to a Junos device and are at the operational mode prompt.
Which two commands are used at this prompt? (Choose two.)
- A. request system shutdown
- B. show interface ge-0/0/0
- C. set interface ge-0/0/0 unit 0 family inet
- D. run show interface terse
Answer: B
Explanation:
At the operational mode prompt on a Junos device, you can use various commands to view the device's status and request system operations. Theshow interface ge-0/0/0command is used to display information about a specific interface, while therequest system shutdowncommand is used to properly shut down the device. The setcommand is used in configuration mode, not operational mode, and theruncommand is used to execute operational mode commands from configuration mode.
NEW QUESTION # 37
Which two statements about firewall filters are correct? (Choose two.)
- A. Firewall filters are stateful.
- B. Firewall filters can match Layer 4 parameters.
- C. Firewall filters can match Layer 7 parameters.
- D. Firewall filters are stateless.
Answer: B,D
Explanation:
Firewall filters in Junos OS are stateless, meaning they process each packet individually without regard to the state of a connection or sequence of packets. These filters can match various packet attributes, including those at Layer 4, such as TCP and UDP port numbers. This allows for granular control over traffic based on the type of service or application. Unlike stateless filters, stateful firewalls keep track of the state of active connections and make decisions based on the context of the traffic flow, which is not a capability of Junos firewall filters.
Additionally, Junosfirewall filters primarily operate up to Layer 4 and do not natively inspect Layer 7 parameters, which involve application-level data.
NEW QUESTION # 38
Which two statements are true about the PFE? (Choose two.)
- A. The PFE handles all processes that control the chassis components.
- B. The PFE uses Layer 2 and Layer 3 forwarding tables to forward traffic toward its destination.
- C. The PFE is responsible for performing protocol updates and system management.
- D. The PFE implements various services such as policing, stateless firewall filtering, and class of service.
Answer: B,D
Explanation:
The Packet Forwarding Engine (PFE) in Juniper Networks devices is the heart of the data plane, handling the actual forwarding of packets based on pre-computed forwarding tables. It provides several critical services to manage and control traffic flow, including policing (to enforce bandwidth limits for certain traffic types), stateless firewall filtering (to permit or deny traffic based on predefined criteria), and Class of Service (CoS) (to prioritize traffic to ensure quality of service for critical applications). The PFE utilizes both Layer 2 (MAC addresses) and Layer 3 (IP addresses) forwarding tables to make intelligent forwarding decisions, ensuring that packets are efficiently routed toward their final destination.
NEW QUESTION # 39
What information does the forwarding table require so that the device forwards traffic? (Choose three.)
- A. OSPF metric value
- B. outgoing interface name
- C. BGP local preference value
- D. next hop IP address
- E. next hop MAC address
Answer: B,D,E
Explanation:
The forwarding table in a network device requires specific information to efficiently forward traffic toward its destination. This includes the next hop IP address, which indicates the next router or device in the path to the destination. The outgoing interface name identifies the physical or logical interface through which the packet should be sent to reach the next hop. Lastly, the next hop MAC address is crucial for Layer 2 forwarding decisions, allowing the device to encapsulate the IP packet in a frame that can be understood by Ethernet or other Layer 2 protocols. OSPF metric values and BGP local preference values are used in the routing decision process to select the best path and populate the forwarding table but are not directly used by the forwarding table to forward traffic.
NEW QUESTION # 40
Which two external authentication methods does Junos support for administrative access? (Choose two.)
- A. RADIUS
- B. ACE
- C. TACACS+
- D. NIS
Answer: C
Explanation:
Junos OS supports several external authentication methods for administrative access, with TACACS+ (Terminal Access Controller Access-Control System Plus) and RADIUS (Remote Authentication Dial-In User Service) being among the most commonly used. Both TACACS+ and RADIUS are protocols that allow network devices to communicate with a central authentication server, enabling centralized control over user authentication and authorization. This centralization simplifies the management of user credentials and access policies, especially in larger networks with multiple devices.
NEW QUESTION # 41
What is the primary system log file that is present in the default configuration of a Junos device?
- A. kmd
- B. jsrpd
- C. messages
- D. vrrp
Answer: C
Explanation:
In the default configuration of a Junos device, the primary system log file is "messages" (B). This log file contains a wide range of system messages, including operational status changes, system errors, and other critical information, making it a key resource for troubleshooting and monitoring the system's health.
NEW QUESTION # 42
Exhibit.
Referring to the exhibit, which routing configuration is required for these two users to access the remote server?
- A. Users and the server require a default gateway.
- B. A routing protocol must be enabled on the router.
- C. Trunk ports must be enabled on the switch.
- D. Users must connect directly to the router.
Answer: A
Explanation:
In a typical network configuration, users and servers require a default gateway to communicate with devices on different networks or subnets. The default gateway is usually the router's interface on the same network, which routes the traffic to other networks. This is essential for the two users to access the remote server if the server is on a different subnet, which is indicated by the different network addresses.
NEW QUESTION # 43
Exhibit
[edit system archival] user@router# show configuration {
transfer-on-commit; archive-sites {
"scp://[email protected] : /archive" password## SECRET-DATA
"ftp://[email protected]:/archive" password "$9..."; ## SECRET-DATA
.
Referring to the exhibit, where are the configuration backup files stored?
- A. Files are storedto the SCP site and the FTP site simultaneously.
- B. Files are storedto the SCP site and the FTP site in a round-robinmanner.
- C. Files are storedto any site as selected by Junos internally.
- D. Files are storedto the SCP site but if the transfer fails, then to theFTP site.
Answer: A
Explanation:
In Junos OS, thearchivalconfiguration under[edit system]allows for the automatic backup of configuration files to designated locations upon commit. When multiplearchive-sitesare specified, as shown in the exhibit with both SCP and FTP sites listed, the device does not choose between them or use them in a round-robin manner. Instead, it attempts to transfer the configuration backup files to all specified sites simultaneously upon each commit. This ensures redundancy and increases the likelihood that a backup will be successfully stored even if one of the transfer methods or destinations fails.
NEW QUESTION # 44
Click the Exhibit button.
Referring the exhibit, what does the highlighted number indicate?
- A. cost is 5
- B. hop count is 5
- C. route preference is 5
- D. metric is 5
Answer: C
Explanation:
In the exhibit shown, the highlighted number next to the route type (Static) within the square brackets indicates the route preference, also known as the administrative distance. In Junos, the route preference is a value that determines the priority of the route source. Lower numbers indicate a higher priority when the routing table is being calculated. The route preference is used to select the best route when multiple paths to the same destination exist from different routing sources. The number 5 is unusually low for a static route by default, suggesting it has been manually configured to override other route types.
NEW QUESTION # 45
What are two attributes of the UDP protocol? (Choose two.)
- A. UDP is best effort.
- B. UDP is always slower than TCP.
- C. UDP is connectionless.
- D. UDP is more reliable than TCP.
Answer: A,C
Explanation:
UDP (User Datagram Protocol) is known for being connectionless (D) and providing best-effort delivery without the reliability mechanisms present in TCP (C). This means that UDP does notestablish a connection before sending data and does not guarantee delivery, order, or error checking, making it faster but less reliable than TCP.
NEW QUESTION # 46
Which type of device uses the destination IP address to forward packets?
- A. repeater
- B. hub
- C. Layer 3 router
- D. Layer 2 switch
Answer: C
Explanation:
A Layer 3 router uses the destination IP address to forward packets. The correct answer is A. Routers operate at Layer 3 of the OSI model and make forwarding decisions based on IP addresses. They are responsible for routing packets across different networks by examining the destination IP address contained in the packet's header.
NEW QUESTION # 47
Which command displays all IPv6 routes in the default routing instance?
- A. showroute table inet.0
- B. showroute table inet.l
- C. showroute table inet6.0
- D. showroute table inet6.1
Answer: C
Explanation:
In Junos OS, the command to display IPv6 routes in the default routing instance isshow route table inet6.0.
The routing tableinet6.0specifically holds IPv6 routes. The commandshow route table inet.0is used for IPv4 routes, andinet6.1orinet.l(assuminginet.lis a typo forinet.1) are not standard Junos routing tables for displaying IPv6 routes in the default routing instance.
NEW QUESTION # 48
What information does the forwarding table require so that the device forwards traffic? (Choose three.)
- A. OSPF metric value
- B. outgoing interface name
- C. BGP local preference value
- D. next hop IP address
- E. next hop MAC address
Answer: B,D,E
Explanation:
The forwarding table in a network device requires specific information to efficiently forward traffic toward its destination. This includes the next hop IP address, which indicates the next router or device in the path to the destination. The outgoing interface name identifies the physical or logical interface through which the packet should be sent to reach the next hop. Lastly, the next hop MAC address is crucial for Layer 2 forwarding decisions, allowing the device to encapsulate the IP packet in a frame that can be understood by Ethernet or other Layer 2 protocols. OSPF metric values and BGP local preference values are used in the routing decision process to select the best path and populate the forwarding table but are not directly used by the forwarding table to forward traffic.
NEW QUESTION # 49
......
JN0-105 are Available for Instant Access: https://www.exam4docs.com/JN0-105-study-questions.html
JN0-105 Dumps 2024 - New Juniper JN0-105 Exam Questions: https://drive.google.com/open?id=1mLMd-40THUUS_s4u7zo-D4qmNRfsWL2Q
