Calculation of the certificate_verify in TLS involves the use of a finished_label. The finished_label is the string-

CRYPTOGRAPHY AND NETWORK SECURITY - NETWORK SECURITY CONCEPTS MCQ

• In the below figure from left to right, the correct order of the shaded levels are
• In the below figure, which of the above shaded block is transparent to end users and applications?
• In terms of Web Security Threats, “Impersonation of another user” is a Passive Attack
• Which one of the following is not a higher –layer SSL protocol?
• Which one of the following is not a session state parameter?
• In the SSL Protocol, each upper layer message if fragmented into a maximum of __________ bytes
• The difference between HMAC algorithm and SSLv3 is that pad1 and pad2 are ________ in SSLv3 whereas ________ in HMAC
• The full form of SSL is
• After the encryption stage in SSL, the maximum length of each fragment is
• Consider the following example
• Which protocol is used to convey SSL related alerts to the peer entity?
• Which protocol consists of only 1 bit?
• Which protocol is used for the purpose of copying the pending state into the current state?
• Which of the following are possible sizes of MACs?
• In the alert protocol the first byte takes the value 1 or 2 which corresponds to _________ and _________ respectively
• Number of phases in the handshaking protocol?
• In the SSL record protocol operation pad_2 is –
• In the SSL record protocol operation pad_1 is –
• In the Handshake protocol action, which is the last step of the Phase 2 : Server Authentication and Key Exchange?
• Which is the key exchange algorithm used in CipherSuite parameter?
• he certificate message is required for any agreed-on key exchange method except _______________
• In the Phase 2 of the Handshake Protocol Action, the step server_key_exchange is not needed for which of the following cipher systems?
• The DSS signature uses which hash algorithm?
• The RSA signature uses which hash algorithm?
• What is the size of the RSA signature hash after the MD5 and SHA-1 processing?
• The certificate_request massage includes two parameters, one of which is-
• The client_key_exchange message uses a pre master key of size –
• In the handshake protocol which is the message type first sent between client and server ?
• In the SSLv3 the padding bits are ____________ with the secret key
• Which of the following is not a valid input to the PRF in SSLv3?
• Which of the following alert codes is not supported by SSLv3?
• We encounter the record_overflow error when the payload length exceeds –
• Which key exchange technique is not supported by SSLv3?
• Calculation of the certificate_verify in TLS involves the use of a finished_label. The finished_label is the string-
• In TLS padding cann be upto a maximum of –
• URL stands for –
• HTTPS stands for Hypertext Transfer Protocol over TLS
• An HTTP connection uses port _________ whereas HTTPS uses port ____________ and invokes SSL
• Which of the following is not a secure shell protocol?
• Which is the lowest level in the SSH protocol stack?
• How many trust models does the RFC 4251 dictate?
• Which is the correct order of the SSH Transport Layer Protocol Packet Exchanges?
• The correct order of operations in the SSH Transport Layer Protocol Packet Formation is –
• Size of the sequence number is-
• Which one of the following does not undergo the encryption procedure?
• What is the recommended cryptographic algorithm for the Secure Shell Transport Layer?
• What is the recommended modes of operation for encryption and decryption in the Secure Shell Transport Layer?
• What is the recommended MAC algorithm for the SSH Transport Layer?
• The session Identifier remains constant throughout the SSH connection
• In the Key generation procedure, the Initialization Vector from the server to client is represented as:
• Which port forwarding technique intercepts application-level traffic and redirects it from an insecure TCP connections to secure SSH tunnels?
• The protocol ‘POP’ stands for-
• In which port forwarding technique does the client act on the server’s behalf?
• In the Key generation procedure, the Integrity Key from the client to server is represented as:
• In the Key generation procedure, the Integrity Key from the server to client is represented as:
• In the Key generation procedure, the Encryption key from the server to client is represented as:
• In the User Authentication Protocol, when the client requests for authentication, then the first byte ( in this format) has decimal value –
• SSH_MSG_USERAUTH_FALIURE is represented by byte-
• SH_MSG_USERAUTH_SUCCESS is represented by the byte –
• Which of the following are valid authentication methods?
• The SSH Connection Protocol runs on top of the SSH Transport Layer Protocol and assumes that a secure authentication connection is in use
• The secure authentication connection is referred to as-
• The Secure Shell Connection Protocol Message exchange has the fist phase as “Opening a Channel” and it sends a message with parameters-
• In the “Opening a channel” phase what is the function of the “innitial window size” parameter?
• In the “Opening a channel” phase what is the function of the “maximum packet size” parameter?
• Which is not a channel recognized by the SSH connection protocol?
• Which channel ensures local port forwarding?
• On which port will the server generally listen to for SMTP?
• Confidentiality with asymmetric-key cryptosystem has its own
• SHA-l has a message digest of
• Message authentication is a service beyond
• In Message Confidentiality, the transmitted message must make sense to only intended
• A hash function guarantees the integrity of a message. It guarantees that the message has not be
• To check the integrity of a message, or document, the receiver creates the
• A digital signature needs a
• One way to preserve the integrity of a document is through the use of a
• A session symmetric key between two parties is used
• Encryption and decryption provide secrecy, or confidentiality, but not
• MAC stands for
• The digest created by a hash function is normally called a
• Message confidentiality is using
• A sender must not be able to deny sending a message that was sent, is known as
• To preserve the integrity of a document, both the document and the fingerprint are
• When the data must arrive at the receiver exactly as they were sent, its called
• The message digest needs to be
• In Message Integrity, the message digest needs to be kept
• In Message Integrity, SHA-l hash algorithms create an N-bit message digest out of a message of
• The Message confidentiality or privacy means that the sender and the receiver expect
• The message must be encrypted at the sender site and decrypted at the
• The field that covers a variety of computer networks, both public and private, that are used in everyday jobs
• Network Security provides authentication and access control for resources
• Which is not an objective of network security?
• Which of these is a part of network identification?
• The process of verifying the identity of a user
• A concern of authentication that deals with user rights
• CHAP stands for?
• Security features that control that can access resources in the OS
• An algorithm in encryption is called _____________
• The information that gets transformed in encryption is ____________
• If an attacker manages to get an application to execute an SQL query created by the attacker, then such attacks are called as _________
• An attack on a website that stores and displays text to a user is known as ______ attack
• The URL of the page that had the link that the user clicked to access the page is called as _____
• State true or false: Password leakage is a major security problem
• The system where two independent pieces of data are used to identify a user is called as ______
• What are man in the middle attacks?
• What are phishing attacks?
• What is the standard for exchanging authentication and authorization information between two different security domains?
• A log of all changes to the application data is called as __________
• Which of the following is a valid encryption technique?
• In _________________ attacks, the attacker manages to get an application to execute an SQL query created by the attacker
• A Web site that allows users to enter text, such as a comment or a name, and then stores it and later displays it to other users, is potentially vulnerable to a kind of attack called a ___________________ attack
• _________ is an attack which forces an end user to execute unwanted actions on a web application in which he/she is currently authenticated
• Many applications use _________________, where two independent factors are used to identify a user
• Even with two-factor authentication, users may still be vulnerable to_____________attacks
• A single ______________ further allows the user to be authenticated once, and multiple applications can then verify the user’s identity through an authentication service without requiring reauthentication
• The ___________________ is a standard for exchanging authentication and authorization information between different security domains, to provide cross-organization single sign-on
• The __________ standard is an alternative for single sign-on across organizations, and has seen increasing acceptance in recent years
• _______________ allows a system administrator to associate a function with a relation; the function returns a predicate that must be added to any query that uses the relation
• VPD provides authorization at the level of specific tuples, or rows, of a relation, and is therefore said to be a _____________ mechanism

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