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.
| 3051. |
In cyclic redundancy checking what is the CRC? |
| A. | the divisor |
| B. | the quotient |
| C. | the dividend |
| D. | the remainder |
| Answer» E. | |
| 3052. |
What is the maximum number of entries in the HOSTS file? |
| A. | 8 |
| B. | 255 |
| C. | 500 |
| D. | Unlimited |
| E. | None of the above |
| Answer» E. None of the above | |
| 3053. |
The communication mode that supports data in both directions at the same time is |
| A. | simplex |
| B. | half-duplex |
| C. | full-duplex |
| D. | multiplex |
| E. | None of the above |
| Answer» D. multiplex | |
| 3054. |
Repeaters are often used on an 802.3 network to help strengthen the signals being transmitted. As with the length of segments and the number of segments, a limit exists as to how many repeaters can be used between any two nodes. What is the maximum number of repeaters that can be used? |
| A. | Five |
| B. | Two |
| C. | Four |
| D. | Six |
| E. | Three |
| Answer» D. Six | |
| 3055. |
How much power (roughly) a light-emitting diode can couple into an optical fiber? |
| A. | 100 microwatts |
| B. | 440 microwatts |
| C. | 100 picowatts |
| D. | 10 milliwatts |
| E. | None of the above |
| Answer» B. 440 microwatts | |
| 3056. |
A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler? |
| A. | gateway |
| B. | bridge |
| C. | acoustic coupler |
| D. | time-division multiplexer |
| E. | None of the above |
| Answer» D. time-division multiplexer | |
| 3057. |
Which of the following digits are known as the sub-address digits (for use by the user) of the Network User Address (NUA)? |
| A. | 5-7 |
| B. | 1-4 |
| C. | 8-12 |
| D. | 13-14 |
| E. | None of the above |
| Answer» E. None of the above | |
| 3058. |
Most networks are connected to other local area or wide area networks. Select the best fit for answer: |
| A. | Internet works |
| B. | The Internet |
| C. | Internet revolution |
| D. | Internet technologies |
| Answer» B. The Internet | |
| 3059. |
You are working with a network that is 172.16.0.0 and would like to support 600 hosts per subnet. What subnet mask should you use? |
| A. | 255.255.192.0 |
| B. | 255.255.224.0 |
| C. | 255.255.240.0 |
| D. | 255.255.248.0 |
| E. | 255.255.252.0 |
| Answer» F. | |
| 3060. |
A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate? |
| A. | 1.5 Mbaud/sec |
| B. | 6 Mband/sec |
| C. | 12 Mbaud/sec |
| D. | 24 Mbaud/sec |
| E. | None of the above |
| Answer» D. 24 Mbaud/sec | |
| 3061. |
Error detecting code is |
| A. | an error-detecting code based on a summation operation performed on the bits to be checked |
| B. | a check bit appended to an array of binary digits to make the sum of all the binary digits. |
| C. | a code in which each expression conforms to specify 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 error is detected. |
| D. | the ratio of the data units in error to the total number of data units |
| E. | None of the above |
| Answer» D. the ratio of the data units in error to the total number of data units | |
| 3062. |
A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer: |
| A. | Internetworked enterprise |
| B. | Information super highway |
| C. | Business applications of telecommunications |
| D. | Client/Server networks |
| Answer» C. Business applications of telecommunications | |
| 3063. |
What does 240 translate to in binary? |
| A. | 11110000 |
| B. | 00011110 |
| C. | 00001111 |
| D. | 11100000 |
| E. | None of the above |
| Answer» B. 00011110 | |
| 3064. |
You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use? |
| A. | 255.224.0.0 |
| B. | 255.240.0.0 |
| C. | 255.248.0.0 |
| D. | 255.252.0.0 |
| E. | 255.254.0.0 |
| Answer» F. | |
| 3065. |
An international standard, multilevel set of protocols to promote compatibility among telecommunications networks. Select the best fit for answer: |
| A. | Network Server |
| B. | Virtual Private Network |
| C. | Network operating system |
| D. | OSI |
| Answer» E. | |
| 3066. |
Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called |
| A. | LAN |
| B. | WAN |
| C. | ECONET |
| D. | EITHERNET |
| E. | None of the above |
| Answer» C. ECONET | |
| 3067. |
A network which is used for sharing data, software and hardware among several users owning microcomputers is called |
| A. | WAN |
| B. | MAN |
| C. | LAN |
| D. | VAN |
| E. | None of the above |
| Answer» D. VAN | |
| 3068. |
Which of the following is an example of a client-server model? |
| A. | TELNET |
| B. | FTP |
| C. | DNS |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 3069. |
In CRC there is no error if the remainder at the receiver is _____. |
| A. | the quotient at the sender |
| B. | nonzero |
| C. | zero |
| D. | equal to the remainder at the sender |
| E. | None of the above. |
| Answer» B. nonzero | |
| 3070. |
Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select? |
| A. | Star |
| B. | Right |
| C. | Token-Ring |
| D. | Ethernet |
| E. | Bus |
| Answer» F. | |
| 3071. |
The CCITT Recommendation X.25 specifies three layers of communications: |
| A. | application, presentation and session |
| B. | Session, transport and network |
| C. | physical datalink and network |
| D. | datalink, network and transport |
| Answer» D. datalink, network and transport | |
| 3072. |
Which of the following technique is used for allocating capacity on a satellite channel using fixed-assignment FDM? |
| A. | Amplitude modulation |
| B. | Frequency-division multiple access |
| C. | Frequency modulation |
| D. | Frequency-shift keying |
| E. | None of the above |
| Answer» C. Frequency modulation | |
| 3073. |
The amount of uncertainty in a system of symbol is called |
| A. | Bandwidth |
| B. | Entropy |
| C. | loss |
| D. | Quantum |
| E. | None of the above |
| Answer» C. loss | |
| 3074. |
Which of the following allows a simple email service and is responsible for moving messages from one mail server to another? |
| A. | IMAP |
| B. | DHCP |
| C. | SMTP |
| D. | FTP |
| E. | POP3 |
| Answer» D. FTP | |
| 3075. |
A WATS arrangement |
| A. | is always less expensive than flat-rate service |
| B. | is less expensive than flat-rate service only when the number of calls is large and the duration of each is short |
| C. | is less expensive than flat-rate service only when the number of calls is small and the duration of each is long |
| D. | is never less expensive than flat-rate service |
| E. | None of the above |
| Answer» C. is less expensive than flat-rate service only when the number of calls is small and the duration of each is long | |
| 3076. |
Which of the following frequency ranges is used for AM radio transmission? |
| A. | Very Low Frequency : 3 kHz to 30 kHz |
| B. | Medium Frequency : 300 kHz to 3 MHz |
| C. | High Frequency : 3 MHz to 30 MHz |
| D. | Very High Frequency : 30 MHz to 300 MHz |
| E. | None of the above |
| Answer» C. High Frequency : 3 MHz to 30 MHz | |
| 3077. |
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent? |
| A. | 32 Kbps |
| B. | 64 Kbps |
| C. | 8 Kbps |
| D. | 128 Kbps. |
| Answer» B. 64 Kbps | |
| 3078. |
X.21 is |
| A. | a method of determining which device has access to the transmission medium at any time |
| B. | a method access control technique for multiple-access transmission media |
| C. | a very common bit-oriented data link protocol issued by ISO |
| D. | network access standard for connecting stations to a circuit-switched network |
| E. | None of the above |
| Answer» E. None of the above | |
| 3079. |
A software that allows a personal computer to pretend it as a terminal is |
| A. | auto-dialing |
| B. | bulletin board |
| C. | modem |
| D. | terminal emulation |
| E. | None of the above |
| Answer» B. bulletin board | |
| 3080. |
What is the name of the network topology in which there are bi-directional links between each possible node? |
| A. | Ring |
| B. | Star |
| C. | Tree |
| D. | Mesh |
| E. | None of the above |
| Answer» E. None of the above | |
| 3081. |
What is the main purpose of a data link content monitor? |
| A. | to detect problems in protocols |
| B. | to determine the type of transmission used in a data link |
| C. | to determine the type of switching used in a data link. |
| D. | to determine the flow of data |
| Answer» B. to determine the type of transmission used in a data link | |
| 3082. |
To set up a bulletin board system you need |
| A. | a smart modem with auto-answer capabilities |
| B. | a telephone line |
| C. | a personal computer |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 3083. |
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent? |
| A. | 32 kbps |
| B. | 8 kbps |
| C. | 128 kbps |
| D. | 64 kbps. |
| Answer» C. 128 kbps | |
| 3084. |
Which command-line tool is included with every Microsoft TCP/IP client? |
| A. | DHCP |
| B. | WINS |
| C. | PING |
| D. | WINIPCFG |
| E. | None of the above |
| Answer» D. WINIPCFG | |
| 3085. |
If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____. |
| A. | even |
| B. | odd |
| C. | indeterminate |
| D. | 42 |
| Answer» C. indeterminate | |
| 3086. |
An error-detecting code inserted as a field in a block of data to be transmitted is known as |
| A. | Frame check sequence |
| B. | Error detecting code |
| C. | Checksum |
| D. | flow control |
| Answer» B. Error detecting code | |
| 3087. |
What does the acronym ISDN stand for? |
| A. | Indian Standard Digital Network |
| B. | Integrated Services Digital Network |
| C. | Intelligent Services Digital Network |
| D. | Integrated Services Data Network |
| E. | None of the above |
| Answer» C. Intelligent Services Digital Network | |
| 3088. |
Videotex is a combination of |
| A. | television |
| B. | communication |
| C. | computer technology |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 3089. |
Which of the following services dynamically resolves NetBIOS-to-IP resolution? |
| A. | DNS |
| B. | DHCP |
| C. | WINS |
| D. | LMHOSTS |
| E. | None of the above |
| Answer» D. LMHOSTS | |
| 3090. |
An example of a medium-speed, switched communications service is |
| A. | Series 1000 |
| B. | Dataphone 50 |
| C. | DDD |
| D. | All of the above |
| E. | None of the above |
| Answer» D. All of the above | |
| 3091. |
UDP is: |
| A. | Not a part of the TCP/IP suite |
| B. | Connection oriented and unreliable |
| C. | Connection orientated and reliable |
| D. | Connectionless and unreliable |
| Answer» E. | |
| 3092. |
The interactive transmission of data within a time sharing system may be best suited to |
| A. | simplex lines |
| B. | half-duplex lines |
| C. | full-duplex lines |
| D. | biflex-line |
| E. | None of the above |
| Answer» C. full-duplex lines | |
| 3093. |
What is the minimum number of wires required for sending data over a serial communications links? |
| A. | 2 |
| B. | 1 |
| C. | 4 |
| D. | 3 |
| E. | None of the above |
| Answer» B. 1 | |
| 3094. |
In cyclic redundancy checking, the divisor is _____ the CRC. |
| A. | the same size as |
| B. | one bit less than |
| C. | one bit more than |
| D. | two bits more |
| Answer» D. two bits more | |
| 3095. |
Number of bits per symbol used in Baudot code is |
| A. | 1 |
| B. | 5 |
| C. | 8 |
| D. | 9 |
| E. | None of the above |
| Answer» C. 8 | |
| 3096. |
Working of the WAN generally involves |
| A. | telephone lines |
| B. | microwaves |
| C. | satellites |
| D. | All of the above |
| E. | None of the above |
| Answer» E. None of the above | |
| 3097. |
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide? |
| A. | A logical address that identifies the workstation |
| B. | A physical address that is randomly assigned each time the computer is started |
| C. | A physical address that is assigned by the manufacturer |
| D. | The logical domain address for the workstation |
| E. | An alias for the computer name |
| Answer» D. The logical domain address for the workstation | |
| 3098. |
Sending a file from your personal computer's primary memory or disk to another computer is called |
| A. | uploading |
| B. | downloading |
| C. | logging on |
| D. | hang on |
| Answer» B. downloading | |
| 3099. |
What frequency range is used for microwave communications, satellite and radar? |
| A. | Low Frequency : 30 kHz to 300 kHz |
| B. | Medium Frequency : 300 kHz to 3 MHz |
| C. | Super High Frequency : 3000 MHz to 30000 MHz |
| D. | Extremely High Frequency :30,000 MHz |
| E. | None of the above |
| Answer» E. None of the above | |
| 3100. |
Business meeting and conferences can be held by linking distantly located people through a computer network. Not only the participants exchange information but are able to see each other. What is it called? |
| A. | Telemeeting |
| B. | Telemailing |
| C. | Teleconferencing |
| D. | Teletalking |
| E. | None of the above |
| Answer» D. Teletalking | |