Which layer provides end-to-end communication? a. Data Link b. Network c. Transport d. Application
时间: 2024-06-06 19:09:13 浏览: 9
The correct answer is c. Transport layer. The transport layer is responsible for providing end-to-end communication between processes or applications running on different hosts in a network. It ensures that data is delivered reliably and efficiently, and provides services such as flow control, error recovery, and congestion control. Examples of transport layer protocols include TCP (Transmission Control Protocol) and UDP (User Datagram Protocol).
相关问题
Which symbol is used to create multiple inheritances? a. Dot b. Comma c. Dollar d. star
In C++, a comma (`,`) is used to create multiple inheritances. When a derived class is derived from multiple base classes, the class declaration includes the base class names separated by commas. For example:
```
class DerivedClass : public BaseClass1, public BaseClass2, private BaseClass3 {
// class members
};
```
In this example, `DerivedClass` is derived from three base classes - `BaseClass1`, `BaseClass2`, and `BaseClass3`. The access specifiers `public` and `private` specify the access level of the derived class to the base class members. Therefore, the correct answer is b. Comma.
Which data type is most suitable for storing a number 65000 in a 32-bit system? A. signed short B. unsigned short C. long D. int
The correct answer is B. unsigned short.
In a 32-bit system, an unsigned short has a range of 0 to 65,535. Since 65,000 falls within this range, it is the most suitable data type for storing this number.
A signed short has a range of -32,768 to 32,767, which is not sufficient to store 65,000.
A long has a range of -2,147,483,648 to 2,147,483,647, which is overkill for this particular number.
An int has a range of -2,147,483,648 to 2,147,483,647, which is also overkill for this particular number.
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