Questions in: Network & Telecom

Right Answer:
Bachelor's degree.

Right Answer:
Straight-through cabling uses the following color coding:

- Pin 1: White/Orange
- Pin 2: Orange
- Pin 3: White/Green
- Pin 4: Blue
- Pin 5: White/Blue
- Pin 6: Green
- Pin 7: White/Brown
- Pin 8: Brown

Crossover cabling uses the following color coding:

- Pin 1: White/Green
- Pin 2: Green
- Pin 3: White/Orange
- Pin 4: Blue
- Pin 5: White/Blue
- Pin 6: Orange
- Pin 7: White/Brown
- Pin 8: Brown

Right Answer:
R.T.O (Return to Origin) issues occur when a packet cannot reach its destination and is sent back to the sender. An "unplugged" issue refers to a network device being physically disconnected, causing loss of connectivity. To resolve these, check physical connections, ensure devices are powered on, and verify network configurations.

Right Answer:
NATing (Network Address Translation) is a technique used to modify IP address information in packet headers while in transit across a traffic routing device. ACL (Access Control List) is a set of rules that controls incoming and outgoing network traffic based on IP addresses and protocols. VoIP (Voice over Internet Protocol) is a technology that allows voice communication to be transmitted over the internet. The size of an ATM (Asynchronous Transfer Mode) packet is 53 bytes, consisting of a 48-byte payload and a 5-byte header. If a Layer 3 switch has 8 ports, it has 1 broadcast domain and 8 collision domains.

Right Answer:
A switch is a networking device that connects multiple devices on a local area network (LAN) and uses MAC addresses to forward data only to the intended recipient, improving network efficiency.

Right Answer:
The OSI model has seven layers:

1. Physical
2. Data Link
3. Network
4. Transport
5. Session
6. Presentation
7. Application

Right Answer:
I have experience in sales through various roles where I engaged with customers, identified their needs, and effectively communicated the benefits of our products to close deals.

Right Answer:
BPO stands for Business Process Outsourcing, which involves contracting third-party service providers to handle specific business tasks or processes, such as customer service, telemarketing, or data entry, to improve efficiency and reduce costs.

Right Answer:
"mAh" stands for milliampere-hour, which is a unit of measurement that indicates the battery's capacity to store energy. It represents how much current a battery can provide over a specific period.

Right Answer:
Yes, I have knowledge about networking, including concepts like IP addressing, subnetting, routing, switching, and network protocols.

Right Answer:
Networking refers to the practice of connecting computers and other devices to share resources and communicate with each other. Switching, on the other hand, is a specific function within networking that involves directing data packets between devices on the same network, using a switch to manage the flow of data efficiently.

Right Answer:
Yes, I am confident in my ability to achieve the targets set for me.

Right Answer:
To be knowledgeable in server, network, and wireless, one should understand server management (including installation, configuration, and maintenance), network fundamentals (such as IP addressing, routing, and switching), and wireless technologies (like Wi-Fi standards, security protocols, and troubleshooting wireless connections).

Right Answer:
To troubleshoot servers, desktops, and laptops, start by identifying the issue (e.g., hardware failure, software errors, network problems). Check connections, restart devices, and review logs for errors. For networking issues, verify configurations, test connectivity with ping/traceroute, and check firewall settings. Use diagnostic tools as needed to isolate and resolve the problem.

Right Answer:
Cross connection of ultra and flexi F.I.U (Fiber Interface Unit) involves connecting the output of one F.I.U to the input of another to ensure proper signal transmission and redundancy. This is typically done using fiber optic cables, ensuring that the connections are correctly aligned and secured to maintain signal integrity.

Right Answer:
An operational amplifier (OP-AMP) is a high-gain voltage amplifier with differential inputs and typically a single-ended output. It is used in various applications such as signal conditioning, filtering, and mathematical operations like addition and subtraction.

For a BJT (Bipolar Junction Transistor), the current gain (β) can be calculated using the formula:
[ beta = frac{I_C}{I_B} ]
where ( I_C ) is the collector current and ( I_B ) is the base current.

For a Zener diode, the breakdown voltage (Vz) is used for voltage regulation. The current through the Zener diode can be calculated using Ohm's law:
[ I_Z = frac{V_{in} - V_z}{R} ]
where ( V_{in} ) is the input voltage, ( V_z ) is the Zener voltage, and ( R ) is the series resistance.

Right Answer:
Technologies refer to the tools, systems, and methods used to create, develop, and manage networks and IT infrastructure. This includes hardware like routers and switches, software for network management, protocols for communication, and security measures to protect data.

Right Answer:
In a critical position, I prioritize tasks, stay calm, communicate clearly with my team, and focus on finding solutions rather than dwelling on the problem. I also seek support if needed and ensure to follow up on the outcomes.

Right Answer:
To flash a dead phone, follow these steps:

1. **Download the necessary firmware** for your phone model from a reliable source.
2. **Install the appropriate flashing tool** (like Odin for Samsung, SP Flash Tool for MediaTek, etc.) on your computer.
3. **Put your phone into download/fastboot mode** (usually by pressing specific button combinations while powering on).
4. **Connect the phone to your computer** using a USB cable.
5. **Open the flashing tool** and load the downloaded firmware file.
6. **Start the flashing process** and wait for it to complete.
7. **Disconnect the phone** and restart it.

Make sure to back up any important data before flashing, as this process may erase all data on the device.

Right Answer:
A network is a collection of interconnected devices that can communicate and share resources with each other, such as computers, servers, and printers.