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65题: 虚拟内存的主要作用是()。
A.提高内存访问速度
B.实现多任务隔离
C.扩大逻辑内存容量
D.优化 CPU缓存效率答案解析与讨论:
www.cnitpm.com/st/7818823643.html第
66题: UDP首部不包括()字段。
A.目标端口
B.序列号
C.源端口
D.校验和答案解析与讨论:
www.cnitpm.com/st/7818923634.html第
67题: 若某设备收到目的IP为本地、但MAC地址不匹配的数据帧,其他数据链路层会()该数据帧。
A.丢弃
B.广播
C.缓存
D.转发答案解析与讨论:
www.cnitpm.com/st/7819023634.html第
69题: 某网络中,使用集线器(Hub)连接多台终端,如果将集线器替换为交换机后,下列说法正确的是()。
A.广播域减少,冲突域减少
B.交换机每个端口形成一个独立的冲突域
C.交换机所有端口合并形成一个冲突域
D.广播域不变,冲突域不变答案解析与讨论:
www.cnitpm.com/st/7819223634.html第
70题: 企业园区网络设计时,采用“核心-汇聚-接入”分层模型的优点是()。
A.无单点故障,网络冗余性高
B.IP地址统一分配,方便管理
C.易于隔离故障,网络稳定性高
D.所有流量经过核心层,通信效率高答案解析与讨论:
www.cnitpm.com/st/7819323625.html第
71题:
In recent years, the importance of network security has grown significantly due to the increasing number of cyber threats. To protect sensitive information, Organizations are adopting advanced (1)solutions such as end-to-end encryption and multi-factor authentication. One popular cryptographic method is (2),which ensures that data remains confidential transmission. Additionally,the use of(3)technology is becoming more common to secure communications and prevent unauthorized access to networks. As cyber attacks evolve, it is imperative for businesses to implement robust(4),measures and continuously update their systems to address new vulnerabilities. Moreover, emerging technologies 1ike (5)can help analysts detect anomalies and respond to threats more effectively.(1)A.networkB.hardwareC.softwareD.cryptographic(2)A.blockchainB.digital signatureC.encryptionD.hashing(3)A.blockchainB.cloudC.peer-to-peerD.authentication(4)A.designB.StorageC.performanceD.security(5)A.6GB.virtual reality (VR)C.artificial intelligence (Al)D.3D printing答案解析与讨论:
www.cnitpm.com/st/781949062.html