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Cisco Supporting Devices for Field Technicians 800-150 Dumps in PDF

Free Cisco 800-150 Real Questions (page: 1)

800-150 PDF — 100 Questions

[Cisco Equipment and Related Hardware]
What is the primary role of a switch in a local area network?

  1. to route data packets between different networks
  2. to encrypt data transmissions for security
  3. to divide the network into separate collision domains
  4. to provide wireless connectivity to LAN devices

Answer(s): C

Explanation:

In a local area network (LAN), the primary function of a switch is to operate at Layer 2 (Data Link Layer) of the OSI model. Switches use MAC addresses to forward frames to the appropriate destination ports. This targeted forwarding mechanism divides the network into separate collision domains for each switch port. By isolating collision domains, switches significantly reduce the chance of collisions, enhancing the performance and efficiency of the network. Unlike hubs, which forward all traffic to all ports (thus creating a single collision domain), switches intelligently forward only the necessary traffic to the correct port. This capability allows multiple simultaneous conversations on different switch ports without interference. Routers, which operate at Layer 3 (Network Layer), are used to route packets between different networks, not within the same LAN. Wireless connectivity is provided by wireless access points (WAPs), not switches. Encryption is typically handled by security protocols or devices such as firewalls and not by switches directly.


Reference:

Supporting Cisco Devices for Field Technicians (FLDTEC) ­ Cisco Equipment and Related Hardware



[Cisco Equipment and Related Hardware]
Which Layer 2 technology extends to access layer devices, allowing individual switch ports to be assigned for network and traffic management in an enterprise network?

  1. BGP
  2. VLANs
  3. OSPF
  4. MPLS

Answer(s): B

Explanation:

In an enterprise network, Virtual Local Area Networks (VLANs) are the key Layer 2 technology used to logically segment a network into multiple broadcast domains. VLANs allow network administrators to assign individual switch ports to specific VLANs, enabling effective network segmentation and traffic management.
This configuration extends to access layer devices, such as switches where end-user devices connect. By isolating traffic into VLANs, administrators can improve network performance, enhance security by separating sensitive departments (such as finance and HR), and simplify network management. Unlike routing protocols such as BGP and OSPF, which operate at Layer 3, or MPLS, which is a Layer 2.5 forwarding technology used primarily in service provider networks, VLANs are explicitly designed for Layer 2 segmentation within LAN environments.


Reference:

Supporting Cisco Devices for Field Technicians (FLDTEC) ­ Cisco Equipment and Related Hardware



DRAG DROP (Drag and Drop is not supported)
[Device Configuration and Verification]
Drag and drop the network connectivity and management tools used to ensure connectivity from the left onto the description on the right.

  1. See Explanation for the Answer.

Answer(s): A

Explanation:

PING Sends ICMP echo request packets to verify connectivity
Telnet Allows virtual terminal connections with unencrypted traffic
SSH Provides secure, encrypted remote access to network devices
IP address configuration Requires the PC and Cisco device to be in the same subnet for direct connection

These tools and their functions are covered under "Device Configuration and Verification" in the FLDTEC course:
PING: Utilized to test basic network connectivity using ICMP echo request/reply messages. It confirms whether a device is reachable and measures the round-trip time. Telnet: A protocol that allows for remote device access but transmits data in plaintext, which makes it insecure. It's typically disabled by default on modern Cisco devices due to security concerns. SSH (Secure Shell): Replaces Telnet as the preferred method for secure CLI access. It encrypts the session, protecting sensitive information such as login credentials. IP Address Configuration: For direct device access via the same local network, both the PC and the Cisco device must be in the same subnet. This allows the use of tools like browser-based GUIs or terminal emulators when connecting directly.



[Troubleshooting Methodologies]
Which scenario would result in a speed mismatch when configuring Ethernet devices with different speed settings?

  1. One end is manually set to 1 Gbps, and the other end is manually set to 100 Mbps
  2. Both ends are manually set to the same speed
  3. One end is manually set to 100 Mbps, and the other end is set to auto-negotiation
  4. Both ends are set to auto-negotiation and fail, reverting to their lowest speeds

Answer(s): A

Explanation:

A speed mismatch occurs when two connected Ethernet devices are configured to operate at different speeds. In scenario A, one device is manually set to 1 Gbps, while the other is set to 100 Mbps. Since both ends are hard-coded to different speeds, they cannot successfully negotiate a common speed, leading to a mismatch and resulting in a failed or unstable link. In contrast, scenario B, where both ends are manually set to the same speed, ensures compatibility and stable communication. Scenario C can lead to a duplex mismatch rather than a speed mismatch; the auto-negotiating end may default to half-duplex if it cannot determine the duplex setting of the manually configured end. Scenario D is less common; if auto-negotiation fails, devices may revert to their lowest common speed, but this typically results in reduced performance rather than a complete mismatch.


Reference:

Supporting Cisco Devices for Field Technicians (FLDTEC) ­ Troubleshooting Methodologies



[Cisco IOS Software Basics]
Which layer of the OSI model provides error detection and defines how access to the media is controlled?

  1. Presentation layer
  2. Physical layer
  3. Network layer
  4. Data link layer

Answer(s): D

Explanation:

The Data Link Layer (Layer 2) of the OSI model is responsible for node-to-node data transfer and plays a crucial role in error detection and media access control. It ensures that data frames are transmitted to the correct device on a local network segment.
This layer is divided into two sublayers:
Logical Link Control (LLC): Manages frame synchronization, flow control, and error checking. Media Access Control (MAC): Controls how devices on the network gain access to the medium and permission to transmit data.
Together, these sublayers ensure reliable data transmission by detecting and possibly correcting errors that may occur in the Physical Layer. They also manage how devices share the transmission medium, preventing collisions and ensuring orderly communication.


Reference:

Supporting Cisco Devices for Field Technicians (FLDTEC) ­ Cisco IOS Software Basics



DRAG DROP (Drag and Drop is not supported)
[Cisco Equipment and Related Hardware]



Refer to the exhibit. Drag and drop the functions from the left onto the corresponding internal memory components on the right.

  1. See Explanation for the Answer.

Answer(s): A

Explanation:



NVRAM Startup configuration
RAM Running configuration
ROM Bootstrap code, POST code, ROM monitor

Flash memory Cisco IOS software, backup configuration

Each memory type in a Cisco device serves a specific function in the boot process and runtime operation. NVRAM retains configuration across reboots, RAM is volatile and holds active configs, ROM handles initial boot tasks, and flash stores the operating system.

This content is covered thoroughly in "Cisco Equipment and Related Hardware" in the FLDTEC curriculum. Here's the breakdown:
ROM (Read-Only Memory)
Stores bootstrap code, POST (Power-On Self-Test), and ROM Monitor. These are essential for the device's initial power-on operations and recovery modes.
NVRAM (Non-Volatile RAM)

Holds the startup configuration file, which is loaded during the boot process.
Content remains intact after a reboot or power cycle.
RAM (Random Access Memory)
Stores the running configuration and current operational state of the router or switch. Also used for routing tables, ARP cache, and packet buffers. Data is lost when the device is powered off or rebooted.
Flash Memory
Contains the Cisco IOS image, system files, and can store backup configurations. It is a non-volatile storage, so it retains data after reboots.



[Cisco Equipment and Related Hardware]
Which two devices are most commonly used in a WAN environment? (Choose two.)

  1. Hubs
  2. Optical fiber converters
  3. Modems
  4. Network interface cards
  5. Wireless access points

Answer(s): B,C

Explanation:

In the context of Wide Area Networks (WANs), the key objective is to connect geographically separated networks using service provider infrastructure. The FLDTEC course emphasizes that WAN environments typically involve devices that can handle different physical transmission mediums and protocols.
Modems:
Modulate and demodulate analog signals to digital signals. Used in WAN environments to connect over analog lines like DSL or leased lines. Essential for interfacing between digital routers and analog telephone networks.
Optical Fiber Converters:
Also known as media converters, they are used to convert electrical signals to optical signals (and vice versa) for fiber transmission.
Common in WAN scenarios where long-distance high-speed transmission over fiber is required.

Incorrect Options:
A . Hubs: Obsolete Layer 1 devices used in LANs, not suitable for WANs. D . Network Interface Cards (NICs): Used in end devices for LAN connectivity. E . Wireless Access Points: Typically used in WLANs within local premises, not WAN infrastructure. This aligns with Cisco's WAN architecture fundamentals as highlighted in FLDTEC under "Cisco Equipment and Related Hardware."



[Cisco IOS Software Basics]
What is the purpose of a subnet mask?

  1. Distinguishes the network and host segments
  2. Provides encryption for network traffic
  3. Determines the next-hop router
  4. Aids in route prioritization

Answer(s): A

Explanation:

A subnet mask is a 32-bit number used in IP networking to divide an IP address into network and host portions. This division is crucial for routing traffic within and between networks. The subnet mask works in tandem with the IP address to identify which part of the address refers to the network and which part refers to the host. This distinction allows for efficient IP address allocation and routing.
For example, in the IP address 192.168.1.10 with a subnet mask of 255.255.255.0, the first three octets (192.168.1) represent the network portion, while the last octet (10) identifies the specific host within that network.


Reference:

Supporting Cisco Devices for Field Technicians (FLDTEC) ­ Cisco IOS Software Basics



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A
AI Tutor Explanation
4/23/2026 12:26:21 PM

Question 32:

  • Answer: A (2.4GHz)

  • Why: Lower-frequency signals have longer wavelengths and experience less attenuation when passing through walls and obstacles. Higher frequencies (5GHz, 6GHz) are more easily blocked by walls. NFC operates over very short distances and is not meant to penetrate walls. So 2.4 GHz best penetrates physical objects like walls.

Allen, United States
A
AI Tutor Explanation
4/21/2026 8:48:36 AM

Question 3:

  • False is the correct answer (Option B).

Why:
  • In Snowflake, a database is a metadata object that exists within a single Snowflake account. Accounts are isolated—there isn’t one database that lives in multiple accounts.
  • You can access data across accounts via data sharing or database replication, but these create separate database objects in the other accounts (e.g., a database in the consumer account created from a share), not a single shared database across accounts.

So a single database cannot exist in more than one Snowflake account.

Thane, India
A
Anonymous User
4/16/2026 10:54:18 AM

Question 1:

  • Correct answer: E — date = sys.argv[1]
  • Why this is correct:
- When a Databricks Job passes parameters to a notebook, those parameters are supplied to the notebook's Python process as command-line arguments. The first argument after the script name is sys.argv[1], so date = sys.argv[1] captures the passed date value directly.
  • How it compares to other options:
- date = spark.conf.get("date") reads from Spark config, not from job parameters. - input() waits for user input at runtime, which isn’t how job parameters are provided. - date = dbutils.notebooks.getParam("date") would work if the notebook were invoked via dbutils.notebook.run with parameters, not

Innisfil, Canada
A
Anonymous User
4/15/2026 4:42:07 AM

Question 528:

  • Correct answer: NSG flow logs for NSG1 (Option B)

  • Why:
- Traffic Analytics uses NSG flow logs to analyze traffic patterns. You must have NSG flow logs enabled for the NSGs you want to monitor. - An Azure Log Analytics workspace is also required to store and query the traffic data. - Network Watcher must be available in the subscription for traffic analytics to function.
  • What to configure (brief steps):
- Ensure Network Watcher is enabled in the East US region (for the subscription/region). - Enable NSG flow logs on NSG1. - Ensure a Log Analytics workspace exists and is accessible (read/write) so Traffic Analytics can store and query logs.
  • Why other options aren’t correct:
- “Diagnostic settings for VM1” or “Diagnostic settings for NSG1” alone don’t guarantee flow logs are captured and sent to Log Analytics, which Traffic Analytics relies on. - “Insights for VM1” is not how Traffic Analytics collects traffic data.

Hamburg, Germany
A
Anonymous User
4/15/2026 2:43:53 AM

Question 23:
The correct answer is Domain admin (option B), not Fabric admin.

  • Domain admin provides domain-level management: create domains/subdomains and assign workspaces within those domains, which matches the tasks while following least privilege.
  • Fabric admin is global-level access and is more privileges than needed for this scenario (it would grant broader control across the Fabric environment).

Kottayam, India
A
Anonymous User
4/14/2026 12:31:34 PM

Question 2:
For question 2, the key concept is the Longest Prefix Match. Routers pick the route whose subnet mask is the most specific (largest prefix length) that still matches the destination IP.
From the options:

  • A) 10.10.10.0/28 ? 10.10.10.0–10.10.10.15
  • B) 10.10.13.0/25 ? 10.10.13.0–10.10.13.127
  • C) 10.10.13.144/28 ? 10.10.13.144–10.10.13.159
  • D) 10.10.13.208/29 ? 10.10.13.208–10.10.13.215

The destination Host A’s IP must fall within 10.10.13.208–10.10.13.215 for the /29 to be the best match. Since /29 is the longest prefix among the matching options, Router1 will use 10.10.13.208/29.
Thus, the correct answer is D.

Canada
S
srameh
4/14/2026 10:09:29 AM

Question 3:

  • Correct answer: Phase 4, Post Accreditation

  • Explanation:
- In DITSCAP, the four phases are: - Phase 1: Definition (concept and requirements) - Phase 2: Verification (design and testing) - Phase 3: Validation (fielding and evaluation) - Phase 4: Post Accreditation (ongoing operations and lifecycle management) - The description—continuing operation of an accredited IT system and addressing changing threats throughout its life cycle—fits the Post Accreditation phase, which covers operations, maintenance, monitoring, and reauthorization as threats and environment evolve.

France
O
onibokun10
4/13/2026 7:50:14 PM

Question 129:
Correct answer: CNAME

  • A CNAME record creates an alias for a domain, so newapplication.comptia.org will resolve to whatever IP address www.comptia.org resolves to. This ensures both names point to the same resource without duplicating the IP.
  • Why not the others:
- SOA defines authoritative information for a zone. - MX specifies mail exchange servers. - NS designates name servers for a zone.
  • Notes: The alias name (newapplication.comptia.org) should not have other records if you use a CNAME for it, and CNAMEs aren’t used for the zone apex (root) domain. This scenario uses a subdomain, so a CNAME is appropriate.

Swindon, United Kingdom
A
Anonymous User
4/13/2026 6:29:58 PM

Question 1:

  • Correct answer: C

  • Why this is best:
- Uses OS Login with IAM, so SSH access is granted via Google accounts rather than distributing per-user SSH keys. - Granting the compute.osAdminLogin role to a Google group gives admin access to all team members in a centralized, auditable way. - Access is auditable: Cloud Audit Logs show who accessed which VM, satisfying the security requirement to determine who accessed a given instance.
  • How it works:
- Enable OS Login on the project/instances (enable-oslogin metadata). - Add the team’s

Germany
A
Anonymous User
4/13/2026 1:00:51 PM

Question 2:

  • Answer: D. Azure Advisor

  • Why: To view security-related recommendations for resources in the Compute and Apps area (including App Service Web Apps and Functions), you use Azure Advisor. Advisor surfaces personalized best-practice recommendations across resources, including security, and shows which resources are affected and the severity.

  • Why not the others:
- Azure Log Analytics is for ad-hoc querying of telemetry, not for viewing security recommendations. - Azure Event Hubs is for streaming telemetry data, not for security recommendations.
  • Quick tip: In the portal, navigate to Azure Advisor and check the Security recommendations for App Services to see actionable items and affe

    Brazil
D
Don
4/11/2026 5:36:42 AM

Recommend using AI for Solutions rather the Answer(s) submitted here

Hamburg, Germany
M
Mogae Malapela
4/8/2026 6:37:56 AM

This is very interesting

Gaborone, Botswana
A
Anon
4/6/2026 5:22:54 PM

Are these the same questions you have to pay for in ExamTopics?

Amsterdam, The Netherlands
L
LRK
3/22/2026 2:38:08 PM

For Question 7 - while the answer description indicates the correct answer, the option no. mentioned is incorrect. Nice and Comprehensive. Thankyou

Paris, France
R
Rian
3/19/2026 9:12:10 AM

This is very good and accurate. Explanation is very helpful even thou some are not 100% right but good enough to pass.

United States
G
Gerrard
3/18/2026 6:58:37 AM

The DP-900 exam can be tricky if you aren't familiar with Microsoft’s specific cloud terminology. I used the practice questions from free-braindumps.com and found them incredibly helpful. The site breaks down core data concepts and Azure services in a way that actually mirrors the real test. As a resutl I passed my exam.

United States
V
Vineet Kumar
3/6/2026 5:26:16 AM

interesting

Anonymous
J
Joe
1/20/2026 8:25:24 AM

Passed this exam 2 days ago. These questions are in the exam. You are safe to use them.

UNITED STATES
N
NJ
12/24/2025 10:39:07 AM

Helpful to test your preparedness before giving exam

Anonymous
A
Ashwini
12/17/2025 8:24:45 AM

Really helped

Anonymous
J
Jagadesh
12/16/2025 9:57:10 AM

Good explanation

INDIA
S
shobha
11/29/2025 2:19:59 AM

very helpful

INDIA
P
Pandithurai
11/12/2025 12:16:21 PM

Question 1, Ans is - Developer,Standard,Professional Direct and Premier

Anonymous
E
Einstein
11/8/2025 4:13:37 AM

Passed this exam in first appointment. Great resource and valid exam dump.

Anonymous
D
David
10/31/2025 4:06:16 PM

Today I wrote this exam and passed, i totally relay on this practice exam. The questions were very tough, these questions are valid and I encounter the same.

UNITED STATES
T
Thor
10/21/2025 5:16:29 AM

Anyone used this dump recently?

NEW ZEALAND
V
Vladimir
9/25/2025 9:11:14 AM

173 question is A not D

Anonymous
K
khaos
9/21/2025 7:07:26 AM

nice questions

Anonymous
K
Katiso Lehasa
9/15/2025 11:21:52 PM

Thanks for the practice questions they helped me a lot.

Anonymous
E
Einstein
9/2/2025 7:42:00 PM

Passed this exam today. All questions are valid and this is not something you can find in ChatGPT.

UNITED KINGDOM
V
vito
8/22/2025 4:16:51 AM

i need to pass exam for VMware 2V0-11.25

Anonymous
M
Matt
7/31/2025 11:44:40 PM

Great questions.

UNITED STATES
O
OLERATO
7/1/2025 5:44:14 AM

great dumps to practice for the exam

SOUTH AFRICA
A
Adekunle willaims
6/9/2025 7:37:29 AM

How reliable and relevant are these questions?? also i can see the last update here was January and definitely new questions would have emerged.

Anonymous
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