MCQOPTIONS
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MCQOPTIONS
This section includes 4320 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 2951. |
RS-449/442-A/423-A is |
| A. | a set of physical layer standards developed by EIA and intended to replace RS-232-C. |
| B. | a check bit appended to an array of binary digits to make the sum of the all the binary digits |
| C. | a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected |
| D. | the ratio of the number of data units in error to the total number of data units |
| E. | None of the above |
| Answer» B. a check bit appended to an array of binary digits to make the sum of the all the binary digits | |
| 2952. |
Which of the following digits are known as the area code of the Network User Address (NUA)? |
| A. | 5-7 |
| B. | 1-4 |
| C. | 8-12 |
| D. | 13-14 |
| E. | None of the above |
| Answer» B. 1-4 | |
| 2953. |
End-to-end connectivity is provided from host-to-host in: |
| A. | Network layer |
| B. | Session layer |
| C. | Data link layer |
| D. | Transport layer |
| E. | None of the above |
| Answer» E. None of the above | |
| 2954. |
IDE cables have how many pins? |
| A. | 25 |
| B. | 50 |
| C. | 100 |
| D. | 40 |
| E. | 65 |
| Answer» E. 65 | |
| 2955. |
A PCMCIA measuring 10.5mm is what type? |
| A. | type 1 |
| B. | type 2 |
| C. | type 1 and 3 |
| D. | type 3 |
| E. | None of the above |
| Answer» E. None of the above | |
| 2956. |
What is the jumper setting on a SCSI device to configure it to use the fourth SCSI id? Remember, SCSI ids start with zero. |
| A. | 010 |
| B. | 110 |
| C. | 011 |
| D. | 101 |
| E. | 001 |
| Answer» D. 101 | |
| 2957. |
Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer: |
| A. | Bandwidth alternatives |
| B. | Switching alternating |
| C. | Inter organizational networks |
| D. | Extranets |
| Answer» B. Switching alternating | |
| 2958. |
A modem is connected in between a telephone line and a |
| A. | network |
| B. | computer |
| C. | communication adapter |
| D. | serial port |
| E. | None of the above |
| Answer» D. serial port | |
| 2959. |
What frequency range is used for TV transmission and low power microwave applications? |
| A. | Very Low Frequency : 3 kHz to 30 kHz |
| B. | Medium Frequency : 300 kHz to 3 MHz |
| C. | Ultra High Frequency : 300 MHz to 3000 MHz |
| D. | Super High Frequency : 3000 MHz to 30000 MHz |
| E. | None of the above |
| Answer» D. Super High Frequency : 3000 MHz to 30000 MHz | |
| 2960. |
One important characteristic of the hub architecture of ARC-net is |
| A. | directionalized transmission |
| B. | access control and addressing |
| C. | multiple virtual networks |
| D. | alternative routing |
| E. | None of the above |
| Answer» B. access control and addressing | |
| 2961. |
A band is always equivalent to |
| A. | a byte |
| B. | a bit |
| C. | 100 bits |
| D. | 16 bits |
| E. | None of the above |
| Answer» F. | |
| 2962. |
What is the port number for HTTP? |
| A. | 99 |
| B. | 86 |
| C. | 80 |
| D. | 23 |
| Answer» D. 23 | |
| 2963. |
The most flexibility in how devices are wired together is provided by |
| A. | bus networks |
| B. | ring networks |
| C. | star networks |
| D. | T-switched networks |
| E. | None of the above |
| Answer» B. ring networks | |
| 2964. |
Who originally designed TCP/IP? |
| A. | The Department of Defense |
| B. | Novell |
| C. | IBM |
| D. | Xerox |
| Answer» B. Novell | |
| 2965. |
When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system? |
| A. | Security procedure |
| B. | Safeguard procedure |
| C. | Identification procedure |
| D. | Log-on procedure |
| E. | None of the above |
| Answer» E. None of the above | |
| 2966. |
The systematic access of small computers in a distributed data processing system is referred to as: |
| A. | dialed service |
| B. | multiplexing |
| C. | polling |
| D. | conversational mode |
| E. | None of the above |
| Answer» D. conversational mode | |
| 2967. |
Which of the following is an important characteristic of LAN? |
| A. | application independent interfaces |
| B. | unlimited expansion |
| C. | low cost access for low bandwidth channels |
| D. | parallel transmission |
| E. | None of the above |
| Answer» B. unlimited expansion | |
| 2968. |
Which of the following is a wrong example of network layer: |
| A. | Internet Protocol (IP) ARPANET |
| B. | X. 25 Packet Level Protocol (PLP) - ISO |
| C. | Source routing and Domain naming - Usenet |
| D. | X.25 level 2 - ISO |
| E. | None of the above |
| Answer» E. None of the above | |
| 2969. |
A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take? |
| A. | 2 seconds |
| B. | 20 seconds |
| C. | 120 seconds |
| D. | 12 seconds |
| E. | None of the above |
| Answer» C. 120 seconds | |
| 2970. |
After you have verified that TCP/IP is installed correctly, what is the next step in verifying the TCP/IP configuration? |
| A. | Ping the broadcast address |
| B. | Ping the Microsoft Web site |
| C. | Ping a distant router. |
| D. | Ping the address of the local host |
| E. | None of the above |
| Answer» E. None of the above | |
| 2971. |
Which utility is useful for troubleshooting NetBIOS name resolution problems? |
| A. | NBTSTAT |
| B. | Netstat |
| C. | PING |
| D. | Hostname |
| E. | None of the above |
| Answer» B. Netstat | |
| 2972. |
The EIA-232 interface has _____ pins. |
| A. | 20 |
| B. | 24 |
| C. | 25 |
| D. | 30 |
| Answer» D. 30 | |
| 2973. |
In OSI model, which of the following layer transforms information from machine format into that understandable by user |
| A. | application |
| B. | presentation |
| C. | session |
| D. | physical |
| E. | None of the above |
| Answer» C. session | |
| 2974. |
The channel in the data communication model can be |
| A. | postal mail service |
| B. | telephone lines |
| C. | radio signals |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 2975. |
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer |
| A. | An additional token is added for every 1,000 nodes |
| B. | The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 |
| C. | The network becomes less efficient |
| D. | After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device |
| E. | The network becomes more efficient |
| Answer» F. | |
| 2976. |
When a host knows its physical address but not its IP address, it can use _____. |
| A. | RARP |
| B. | ARP |
| C. | IGMP |
| D. | ICMP |
| E. | None of the above |
| Answer» B. ARP | |
| 2977. |
What is the name given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end? |
| A. | Handshaking |
| B. | Modem options |
| C. | Protocol |
| D. | Duplexing |
| E. | None of the above |
| Answer» B. Modem options | |
| 2978. |
A communications medium that uses pulses of laser light in glass fibers. Select the best fit for answer: |
| A. | Fiber optic cables |
| B. | Cellular phone systems |
| C. | Telecommunications processors |
| D. | Telecommunications software |
| Answer» B. Cellular phone systems | |
| 2979. |
Operating system functions may include |
| A. | input/output control |
| B. | virtual storage |
| C. | multiprogramming |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 2980. |
Which of the following might be used by a company to satisfy its growing communications needs? |
| A. | front-end processor |
| B. | multiplexer |
| C. | controller |
| D. | concentrator |
| E. | All of the above |
| Answer» F. | |
| 2981. |
Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries? |
| A. | physical layer |
| B. | data link layer |
| C. | transport layer |
| D. | network layer |
| E. | None of the above |
| Answer» C. transport layer | |
| 2982. |
What is the term used to describe addresses available on a DHCP server? |
| A. | Pools |
| B. | Scopes |
| C. | Ranges |
| D. | Notes |
| E. | None of the above |
| Answer» C. Ranges | |
| 2983. |
Which of the following files is used for NetBIOS name resolution? |
| A. | HOSTS |
| B. | LMHOSTS |
| C. | ARP |
| D. | FQDN |
| E. | None of the above |
| Answer» C. ARP | |
| 2984. |
In CRC the quotient at the sender |
| A. | becomes the dividend at the receiver |
| B. | becomes the divisor at the receiver |
| C. | is discarded |
| D. | is the remainder |
| Answer» D. is the remainder | |
| 2985. |
You have a network ID of 134.57.0.0 with 8 subnets. You need to allow the largest possible number of host IDs per subnet. Which subnet mask should you assign? |
| A. | 255.255.224.0 |
| B. | 255.255.240.0 |
| C. | 255.255.248.0 |
| D. | 255.255.252.0 |
| E. | 255.255.255.255 |
| Answer» C. 255.255.248.0 | |
| 2986. |
Which multiplexing technique shifts each signal to a different carrier frequency? |
| A. | FDM |
| B. | synchronous TDM |
| C. | asynchronous TDM |
| D. | All of the above |
| Answer» B. synchronous TDM | |
| 2987. |
Which of the following protocol is connection-oriented? |
| A. | IPX |
| B. | UDP |
| C. | NetBEUI |
| D. | TCP |
| Answer» E. | |
| 2988. |
Modulation is the process of |
| A. | sending a file from one computer to another computer |
| B. | converting digital signals to analog signals |
| C. | converting analog signals to digital signals |
| D. | echoing every character that is received |
| E. | None of the above |
| Answer» C. converting analog signals to digital signals | |
| 2989. |
Most data communications involving telegraph lines use: |
| A. | simplex lines |
| B. | wideband channels |
| C. | narrowband channels |
| D. | dialed service |
| E. | None of the above |
| Answer» D. dialed service | |
| 2990. |
Sales persons and other employees of the company who spend much of their time away from their offices but keep in touch with their company's microcomputers or main frame computers over telephone lines are called |
| A. | field workers |
| B. | telecommuters |
| C. | teleprocessors |
| D. | company directors |
| E. | None of the above |
| Answer» C. teleprocessors | |
| 2991. |
What is the standard protocol for network management features? |
| A. | SNA |
| B. | FTP |
| C. | SNMP |
| D. | SMS |
| Answer» D. SMS | |
| 2992. |
The application layer of a network |
| A. | establishes, maintains, and terminates virtual circuits |
| B. | defines the user's port into the network |
| C. | consists of software being run on the computer connected to the network |
| D. | All of the above |
| E. | None of the above |
| Answer» D. All of the above | |
| 2993. |
What does 224 translate to in binary? |
| A. | 11110000 |
| B. | 00011110 |
| C. | 00001111 |
| D. | 11100000 |
| E. | None of the above |
| Answer» E. None of the above | |
| 2994. |
Brad is in charge of a small network and wants to make it simple but secure. The users want to have full control over their data and still be able to share data with the rest of the office. The networking knowledge of the office staff is excellent. Which network(s) would be the best to set up? |
| A. | Peer-to-peer |
| B. | Master domain |
| C. | Server-based |
| D. | Ethernet |
| E. | Share-level |
| Answer» B. Master domain | |
| 2995. |
The simultaneous transmission of data to a number of stations is known as |
| A. | broadcast |
| B. | Band width |
| C. | Aloha |
| D. | Analog transmission |
| E. | None of the above |
| Answer» B. Band width | |
| 2996. |
What can cause a problem with communication with a client by name but not by IP address? |
| A. | The IP address |
| B. | Static files such as an LMHOSTS file or a DNS database |
| C. | Subnet mask |
| D. | The default gateway |
| E. | None of the above |
| Answer» C. Subnet mask | |
| 2997. |
The OCR reading unit attached to a POS terminal is called a |
| A. | light pen |
| B. | wand |
| C. | cursor |
| D. | All of the above |
| E. | None of the above |
| Answer» C. cursor | |
| 2998. |
With telecommunications and a personal computer you can |
| A. | "download" free public domain programs |
| B. | send letters to be printed and delivered by the post office |
| C. | order goods at a substantial discount |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 2999. |
Layer one of the OSI model is |
| A. | physical layer |
| B. | link layer |
| C. | transport layer |
| D. | network layer |
| E. | None of the above |
| Answer» B. link layer | |
| 3000. |
Upper Memory blocks are located where? |
| A. | Conventional Memory |
| B. | Extended Memory |
| C. | Expanded memory |
| D. | Reserved Memory |
| E. | None of the above |
| Answer» E. None of the above | |