第67題： 若某設(shè)備收到目的IP為本地、但MAC地址不匹配的數(shù)據(jù)幀，其他數(shù)據(jù)鏈路層會(huì)（）該數(shù)據(jù)幀。
A．丟棄
B．廣播
C．緩存
D．轉(zhuǎn)發(fā)答案解析與討論：m.xomuzic.com/st/7819023634.html

第68題： 在5G網(wǎng)絡(luò)架構(gòu)中，網(wǎng)絡(luò)切片（Network Slicing）的主要優(yōu)勢是（）。
A．提高用戶入網(wǎng)時(shí)的認(rèn)證速度
B．為不同應(yīng)用提供定制化服務(wù)
C．降低設(shè)備成本
D．?dāng)U大信號范圍答案解析與討論：m.xomuzic.com/st/7819123634.html

第69題： 某網(wǎng)絡(luò)中，使用集線器（Hub）連接多臺終端，如果將集線器替換為交換機(jī)后，下列說法正確的是（）。
A．廣播域減少，沖突域減少
B．交換機(jī)每個(gè)端口形成一個(gè)獨(dú)立的沖突域
C．交換機(jī)所有端口合并形成一個(gè)沖突域
D．廣播域不變，沖突域不變答案解析與討論：m.xomuzic.com/st/7819223634.html

第71題： 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．network
B．hardware
C．software
D．cryptographic
（2）
A．blockchain
B．digital signature
C．encryption
D．hashing
（3）
A．blockchain
B．cloud
C．peer-to-peer
D．a(chǎn)uthentication
（4）
A．design
B．Storage
C．performance
D．security
（5）
A．6G
B．virtual reality （VR）
C．a(chǎn)rtificial intelligence （Al）
D．3D printing答案解析與討論：m.xomuzic.com/st/781949062.html