The device that connects two networks at the highest level
of the ISO-OSI framework ( i.e., application layer) is a
A. Gateway
B. Router
C. Bridge
D. Brouter
- 1 Answers
- 4883 Views
- I also Faced
- E-Mail Answers
Answer / guest
Answer: A
Gateway is used to connect two networks using dissimilar
protocols at the lower layers through which connectivity is
established namely physical, data link, network and
transport layers. Router is a network layer device for which
the two connecting networks must have the same network layer
protocol. Bridge operates in the data link layer. It should
have data link layer protocols, such as token ring,
Ethernet, in use in both the networks. Brouter is
essentially a bridge with some routing functionality.
| Is This Answer Correct ? | 5 Yes | 0 No |
Which of the following is the PRIMARY safeguard for securing software and data within an information processing facility? A. Security awareness B. Reading the security policy C. Security committee D. Logical access controls
Which of the ISO/OSI model layers provides for routing packets between nodes? A. Data link B. Network C. Transport D. Session
An existing system is being extensively enhanced by extracting and reusing design and program components. This is an example of: A. reverse engineering. B. prototyping. C. software reuse. D. reengineering.
The FIRST task an IS auditor should complete when performing an audit in an unfamiliar area is to: A. design the audit programs for each system or function involved. B. develop a set of compliance tests and substantive tests. C. gather background information pertinent to the new audit. D. assign human and economical resources.
Data edits are an example of: A. preventive controls. B. detective controls. C. corrective controls. D. compensating controls.
Which of the following would be the BEST method for ensuring that critical fields in a master record have been updated properly? A. Field checks B. Control totals C. Reasonableness checks D. A before-and-after maintenance report
Which of the following processes describes risk assessment? Risk assessment is: A. subjective. B. objective. C. mathematical. D. statistical.
Which of the following types of data validation editing checks is used to determine if a field contains data, and not zeros or blanks? A. Check digit B. Existence check C. Completeness check D. Reasonableness check
When performing an audit of access rights, an IS auditor should be suspicious of which of the following if allocated to a computer operator? A. READ access to data B. DELETE access to transaction data files C. Logged READ/EXECUTE access to programs D. UPDATE access to job control language/script files
Using test data as part of a comprehensive test of program controls in a continuous online manner is called a/an: A. test data/deck. B. base case system evaluation. C. integrated test facility (ITF). D. parallel simulation.
Which of the following would MOST likely ensure that a system development project meets business objectives? A. Maintenance of program change logs B. Development of a project plan identifying all development activities C. Release of application changes at specific times of the year D. User involvement in system specification and acceptance
An IS auditor, in evaluating proposed biometric control devices reviews the false rejection rates (FRRs), false acceptance rates (FARs) and equal error rates (ERRs) of three different devices. The IS auditor should recommend acquiring the device having the: A. least ERR. B. most ERR. C. least FRR but most FAR. D. least FAR but most FRR.
Cisco Certifications 
