A key-board has at least: (A) 91 keys (B) 101 keys (C) 111 keys (D) 121 keys

A key-board has at least: (A) 91 keys (B) 101 keys (C) 111 keys (D) 121 keys
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(B) 101 keys
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Related questions

A box contains 15bolts of which 5 are defective. If 5 bolts are selected at random from the box, what is the probability that at least one of them is defective? a) 91/143 b) 101/143 c) 111/143 d) 121/143 e) 131/143

Description : A box contains 15bolts of which 5 are defective. If 5 bolts are selected at random from the box, what is the probability that at least one of them is defective? a) 91/143 b) 101/143 c) 111/143 d) 121/143 e) 131/143

Last Answer : Probability that at least one is defective = 1 – probability that none is defective Probability that none is defective = 10C5 / 15C5 = 12/143 Required Probability = 1-12/143 = 131/143 Answer: e)

A 3-input neuron is trained to output a zero when the input is 110 and a one when the input is 111. After generalization, the output will be zero when and only when the input is? a) 000 or 110 or 011 or 101 b) 010 or 100 or 110 or 101 c) 000 or 010 or 110 or 100

Description : A 3-input neuron is trained to output a zero when the input is 110 and a one when the input is 111. After generalization, the output will be zero when and only when the input is? a) 000 or 110 or 011 or 101 b) 010 or 100 or 110 or 101 c) 000 or 010 or 110 or 100

Last Answer : c) 000 or 010 or 110 or 100

An octal number 237 is equal to the binary number 1) 010 011 111 2) 010 111 011 3) 011 101 101 4) 011 000 001

Description : An octal number 237 is equal to the binary number 1) 010 011 111 2) 010 111 011 3) 011 101 101 4) 011 000 001

Last Answer : 3) 011 101 101

An alphabet consist of the letters A, B, C and D. The probability of occurrence is P(A) = 0.4, P(B) = 0.1, P(C) = 0.2 and P(D) = 0.3. The Huffman code is a. A = 01 B = 111 C = 110 D = 10 b. A = 0, B = 100, C = 101, D = 11

Description : An alphabet consist of the letters A, B, C and D. The probability of occurrence is P(A) = 0.4, P(B) = 0.1, P(C) = 0.2 and P(D) = 0.3. The Huffman code is a. A = 01 B = 111 C = 110 D = 10 b. A = 0, B = 100, C = 101, D = 11

Last Answer : b. A = 0, B = 100, C = 101, D = 11

A 3-input neuron is trained to output a zero when the input is 110 and a one when the input is 111. After generalization, the output will be zero when and only when the input is: a) 000 or 110 or 011 or 101 b) 010 or 100 or 110 or 101 c) 000 or 010 or 110 or 100 d) 100 or 111 or 101 or 001

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Last Answer : c) 000 or 010 or 110 or 100

A present sum of Rs. 100 at the end of one year, with half yearly rate of interest at 10%, will be Rs. (A) 121 (B) 110 (C) 97 (D) 91

Description : A present sum of Rs. 100 at the end of one year, with half yearly rate of interest at 10%, will be Rs. (A) 121 (B) 110 (C) 97 (D) 91

Last Answer : (A) 121

55 60 67 78 91 108 ? a) 125 b) 121 c) 127 d) 89 e) None of these

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An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively. The humidity of air sample expressed as kg of water vapour/kg of dry air is: (A) 0.048 (B) 0.079 (C) 0.122 (D) 0.152

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Last Answer : (D) 0.152

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Description : How many control keys are there on the key board ?

Last Answer : Usually there are 2 o'clock. In some cases it is 1 o'clock.

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Last Answer : (3) Enter

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Description : Which of the four data sets have more dispersion? (A) 88 91 90 92 89 91 (B) 0 1 1 0 –1 –2 (C) 3 5 2 4 1 5 (D) 0 5 8 10 –2 –8

Last Answer : Answer: D

Which of the following statement is true? (1) A Primary key is also a candidate key (2) Each relation has at least one foreign key (3) Foreign keys can’t have null values (4) A Primary key is also an alternate key

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Last Answer : (A) American Standard Code for Information Interchange

Using the RSA public key crypto system, if p=13, q=31 and d=7, then the value of e is (A) 101 (B) 105 (C) 103 (D) 107

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Last Answer : A) The child has poor eye-sight 

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In a college having 300 students, every student reads 5 newspapers and every newspaper is read by 60 students. The number of newspapers required is (A) at least 30 (B) at most 20 (C) exactly 25 (D) exactly 5

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Last Answer : (C) exactly 25

Verbal guidance is least effective in the learning of: (A) Aptitudes (B) Skills (C) Attitudes (D) Relationship

Description : Verbal guidance is least effective in the learning of: (A) Aptitudes (B) Skills (C) Attitudes (D) Relationship

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Description : Does a homeowner's association have master keys or a master key to all the houses or condos?

Last Answer : I have never heard of a HOA having that kind of access. I am sure they don’t have keys.

I've just lost the keys to my 2006 Honda Accord (both the key I normally use and my spare key). Now what?

Description : I've just lost the keys to my 2006 Honda Accord (both the key I normally use and my spare key). Now what?

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Is there a function key or series of keys that will insert the current date and time?

Description : Is there a function key or series of keys that will insert the current date and time?

Last Answer : Geesh, I’m sorry I missed it!

My f key sticks and doesn't press down like the rest of the keys . It does type but I'm not sure why it won't press down. It?

Description : My f key sticks and doesn't press down like the rest of the keys . It does type but I'm not sure why it won't press down. It?

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Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached and you have several locks with keys. However, your friend does not have the key to any lock that you have. You cannot send the key in an unlocked box since it may be stolen or copied. How do you send the valuable object, locked, to your friend - so it may be opened by your friend? -Riddles

Description : Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached ... you send the valuable object, locked, to your friend - so it may be opened by your friend? -Riddles

Last Answer : Send the box with a lock attached and locked. Your friend attaches his or her own lock and sends the box back to you. You remove your lock and send it back to your friend. Your friend may then remove the lock she or he put on and open the box.

You want to send a valuable object to a friend. You have a box which is more than large enough to contain the object. You have several locks with keys. The box has a locking ring which is more than large enough to have a lock attached. But your friend does not have the key to any lock that you have. How do you do it? Note that you cannot send a key in an unlocked box, since it might be copied. -Riddles

Description : You want to send a valuable object to a friend. You have a box which is more than large enough to contain the object. You have several locks with keys. The box has a locking ring which is more than ... do it? Note that you cannot send a key in an unlocked box, since it might be copied. -Riddles

Last Answer : Attach a lock to the ring. Send it to her. She attaches her own lock and sends it back. You remove your lock and send it back to her. She removes her lock.

Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached and you have several locks with keys. However, your friend does not have the key to any lock that you have. You cannot send the key in an unlocked box since it may be stolen or copied. How do you send the valuable object, locked, to your friend - so it may be opened by your friend? -Riddles

Description : Suppose you want to send in the mail a valuable object to a friend. You have a box which is big enough to hold the object. The box has a locking ring which is large enough to have a lock attached ... you send the valuable object, locked, to your friend - so it may be opened by your friend? -Riddles

Last Answer : Send the box with a lock attached and locked. Your friend attaches his or her own lock and sends the box back to you. You remove your lock and send it back to your friend. Your friend may then remove the lock she or he put on and open the box.

What is the utility of primary key in database? Write distinct features of primary keys. -Technology

Description : What is the utility of primary key in database? Write distinct features of primary keys. -Technology

Last Answer : The primary key is used to uniquely identify the record in a database. It can be a column or a set of columns in the table.Main features of the primary key are as follows:1. It must contain a unique value for each record of the table.2. It does not contain null values.

Describe how to retrieve the ASCII key code from a keystroke. How would you retrieve key combinations for non-ASCII keys?

Description : Describe how to retrieve the ASCII key code from a keystroke. How would you retrieve key combinations for non-ASCII keys?

Last Answer : Keystrokes can be intercepted by handling the KeyPress and KeyDown events. Both of these events relay information to their handling methods in the form of their EventArgs. The KeyPressEventArgs, ... you would handle the KeyDown event and use the properties exposed by the KeyEventArgs instance.

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Description : Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Last Answer : a) Encryption

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Description : In MS-Excel, which of the following keys helps you to selects all cells below the current selection, up to the edge of the current data region: a) Ctrl + Shift + Down Arrow Key b) Ctrl + Shift + Right Arrow Key c) Ctrl + Shift + D d) None of These

Last Answer : a) Ctrl + Shift + Down Arrow Key

________located on the right corner of the keyboard, is a separate set of number keys for quick input of numbers: a) Numeric Keypad b) Arrow Pad c) Symbolic Key Pad d) None of These

Description : ________located on the right corner of the keyboard, is a separate set of number keys for quick input of numbers: a) Numeric Keypad b) Arrow Pad c) Symbolic Key Pad d) None of These

Last Answer : a) Numeric Keypad

Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Description : Symmetric - key cryptography refers to ______methods in which both the sender and receiver share the same key ( or , less commonly, in which their keys are different but related in an easily computable way): a) Encryption b) Decryption c) Both of above d) None of These

Last Answer : a) Encryption

_________ and _________ saves the publish and subscribe keys that we have generated with the PubNub Admin portal. a) public_key and subscribe_key b) Public-key and subscribe-key c) publickey and subscribekey d) Key_public and key_subscribe

Description : _________ and _________ saves the publish and subscribe keys that we have generated with the PubNub Admin portal. a) public_key and subscribe_key b) Public-key and subscribe-key c) publickey and subscribekey d) Key_public and key_subscribe

Last Answer : a) public_key and subscribe_key

By clicking which key the PubNub will display public, subscribe, and secret keys. a) Pane b) Demo Keyset c) Portal d) Network

Description : By clicking which key the PubNub will display public, subscribe, and secret keys. a) Pane b) Demo Keyset c) Portal d) Network

Last Answer : b) Demo Keyset

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Last Answer : b. Public key encryption

Public key encryption uses multiple keys. One key is used to encrypt data, while another is used to decrypt data. The key used to encrypt data is called the _____ key, while the key used to decrypt data is called the _____ key. a. encryption, decryption b. private, public c. encryption, public d. public, private

Description : Public key encryption uses multiple keys. One key is used to encrypt data, while another is used to decrypt data. The key used to encrypt data is called the _____ key, while the key used to ... the _____ key. a. encryption, decryption b. private, public c. encryption, public d. public, private

Last Answer : d. public, private

In cheque payment protocol, the purchase order form is signed by purchaser using a. his public key b. his private key c. his private key using his signature hardware d. various public keys

Description : In cheque payment protocol, the purchase order form is signed by purchaser using a. his public key b. his private key c. his private key using his signature hardware d. various public keys

Last Answer : c. his private key using his signature hardware  

The responsibility of a certification authority for digital signature is to authenticate the a. hash function used b. private keys of subscribers c. public keys of subscribers d. key used in DES

Description : The responsibility of a certification authority for digital signature is to authenticate the a. hash function used b. private keys of subscribers c. public keys of subscribers d. key used in DES 

Last Answer : c. public keys of subscribers  

Public key system is useful because a. it uses two keys. b. there is no key distribution problem as public key can be kept in a commonly accessible database. c. private key can be kept secret. d. it is a symmetric key system.

Description : Public key system is useful because a. it uses two keys. b. there is no key distribution problem as public key can be kept in a commonly accessible database. c. private key can be kept secret. d. it is a symmetric key system. 

Last Answer : b. there is no key distribution problem as public key can be kept in a commonly accessible database.  

Public key encryption method is a system a. which uses a set of public keys one for each participant in e-Commerce b. in which each person who wants to communicate has two keys; a private key known to him only and a public key which is publicized to enable others to send message to him. c. which uses the RSA coding system. d. which is a standard for use in e-Commerce.

Description : Public key encryption method is a system a. which uses a set of public keys one for each participant in e-Commerce b. in which each person who wants to communicate has two keys; a private key known to him ... him. c. which uses the RSA coding system. d. which is a standard for use in e-Commerce.  

Last Answer : b. in which each person who wants to communicate has two keys; a private key known to him only and a public key which is publicized to enable others to send message to him.

Triple DES a. is a symmetric key encryption method b. guarantees excellent security c. is implementable as a hardware VLSI chip d. is public key encryption method with three keys.

Description : Triple DES a. is a symmetric key encryption method b. guarantees excellent security c. is implementable as a hardware VLSI chip d. is public key encryption method with three keys. 

Last Answer : b. guarantees excellent security  

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Description : DES works by using a. permutation and substitution on 64 bit blocks of plain text b. only permutations on blocks of 128 bits c. exclusive ORing key bits with 64 bit blocks d. 4 rounds of substitution on 64 bit blocks with 56 bit keys

Last Answer : a. permutation and substitution on 64 bit blocks of plain text 

By symmetric key encryption we mean a. one private key is used for both encryption and decryption b. private and public key used are symmetric c. only public keys are used for encryption d. only symmetric key is used for encryption

Description : By symmetric key encryption we mean a. one private key is used for both encryption and decryption b. private and public key used are symmetric c. only public keys are used for encryption d. only symmetric key is used for encryption

Last Answer : D

Find the false statement: (A) In Modern Cryptography, symmetric key algorithms use same key both for Encryption and Decryption. (B) The Symmetric cipher DES (Data Encryption Standard) was widely used in the industry for security product. (C) The AES (Advanced Encryption Standard) cryptosystem allows variable key lengths of size 56 bits and 124 bits. (D) Public key algorithms use two different keys for Encryption and Decryption.

Description : Find the false statement: (A) In Modern Cryptography, symmetric key algorithms use same key both for Encryption and Decryption. (B) The Symmetric cipher DES (Data Encryption Standard) was widely used ... and 124 bits. (D) Public key algorithms use two different keys for Encryption and Decryption.

Last Answer : (C) The AES (Advanced Encryption Standard) cryptosystem allows variable key lengths of size 56 bits and 124 bits.