Which of the following network monitoring tools is used for capturing and analyzing network traffic in real time?
A SNMP
B Wireshark
C HTTP
D DNS
Wireshark is a widely used network protocol analyzer that captures network traffic in real time. It provides detailed information about data packets traveling through the network, helping in troubleshooting and network analysis.
Which of the following protocols is commonly used for network management and monitoring, especially for device status and configuration?
A SNMP
B FTP
C DNS
D HTTP
SNMP (Simple Network Management Protocol) is used for monitoring and managing network devices. It enables administrators to query devices like routers, switches, and servers for status, performance data, and configuration information.
What is the main function of a Content Delivery Network (CDN)?
A Route traffic
B Manage IP addresses
C Provide caching services
D Encrypt data
A CDN distributes copies of content across multiple geographically dispersed servers. By caching content closer to the end users, CDNs improve the performance, reliability, and availability of websites and online services.
Which IoT protocol is used for low power, short range wireless communication between devices in an IoT network?
A MQTT
B HTTP
C TCP
D Zigbee
Zigbee is a popular protocol for wireless communication in IoT networks, especially in low power, short range scenarios. It is used in applications such as home automation, industrial control, and smart energy systems.
Which of the following is a common use case for network monitoring tools like Wireshark?
A Detecting security threats
B Routing data packets
C Managing IP addresses
D Providing network access
Network monitoring tools like Wireshark capture and analyze traffic, helping administrators detect security threats such as unauthorized access, malware, or unusual patterns of traffic, improving network security.
Which protocol is used in IoT systems to enable message oriented communication between devices in a lightweight manner?
A HTTP
B SMTP
C CoAP
D FTP
CoAP (Constrained Application Protocol) is designed for simple, low power IoT devices. It enables efficient, lightweight communication between devices by using a request/response model similar to HTTP but optimized for IoT use cases.
Which of the following is the primary role of a network monitoring system?
A Encrypt traffic
B Detect performance issues
C Assign IP addresses
D Route data packets
A network monitoring system continuously tracks network traffic and performance. It helps detect issues such as slow performance, packet loss, or network outages, enabling quick troubleshooting and maintenance to ensure network stability.
Which network architecture does IoT typically rely on to connect a large number of devices with low power and minimal bandwidth requirements?
A WAN
B MAN
C PAN
D LAN
IoT devices often operate in a Personal Area Network (PAN), which connects devices over short distances using low power. Examples include Bluetooth, Zigbee, and Wi Fi, providing connectivity for small devices in an IoT ecosystem.
Which of the following is the primary benefit of using a CDN for delivering content across the internet?
A Improved content security
B Reduced data redundancy
C Faster content delivery
D Improved data encryption
CDNs enhance the speed of content delivery by caching content on servers located closer to end users. This reduces latency and improves load times, ensuring faster access to websites and multimedia content.
What type of information does SNMP provide to network administrators for device management?
A IP address allocations
B Traffic routing decisions
C Data encryption settings
D Device status and performance
SNMP allows administrators to collect information about the status, health, and performance of network devices. It helps with monitoring device metrics like CPU usage, memory utilization, and interface statistics for proactive management.
Which IoT network protocol is designed to operate over very low power, wide area networks (LPWANs) for long range communication?
A LoRaWAN
B Zigbee
C HTTP
D FTP
LoRaWAN (Long Range Wide Area Network) is designed for long range communication between IoT devices, particularly in remote or rural areas. It uses very low power, making it ideal for devices with long battery life in IoT applications.
Which of the following is a primary feature of network monitoring tools like Wireshark?
A Network address assignment
B Packet sniffing
C Routing traffic
D Data compression
Wireshark is a packet sniffer that captures network traffic and decodes data packets. This allows network administrators to analyze and troubleshoot network issues, track performance, and inspect data flows between devices.
Which of the following IoT devices is typically used in industrial environments to monitor physical conditions like temperature and humidity?
A Smart thermostat
B Wearable tracker
C Environmental sensor
D Smart lock
Environmental sensors in IoT systems are used to monitor conditions like temperature, humidity, and air quality. These devices provide real time data for industries like manufacturing, agriculture, and healthcare for efficient operation.
What is the key feature of a CDN that helps with scaling content delivery for high traffic websites?
A Caching
B Encryption
C Compression
D Load balancing
CDNs use load balancing techniques to distribute traffic across multiple servers. This ensures that no single server is overwhelmed during periods of high demand, improving content delivery speed and website performance for users worldwide.
Which of the following is a main challenge in IoT networking?
A Power consumption
B Device management
C High bandwidth requirement
D Limited storage capacity
Power consumption is a key challenge in IoT networks, particularly for battery powered devices. Efficient use of power is critical to ensure long device life and minimize the need for frequent recharging or battery replacement in large scale IoT deployments.