單項選擇題The de facto standard Application Program Interface (API) for TCP/IP applications is the “sockets” interface. Although this API was developed for (71) in the early 1960s it has also been implemented on a wide variety of no-Unix systems. TCP/IP (72) Written using the sockets API have in the past enjoyed a high degree of portability and we would like the same (73) with IPv6 applications. But changes are required to the sockets API to support IPv6 and this memo describes these changes. These include a new socket address structure to carry IPv6 (74) ,new address conversion functions, and some new socket options. These extensions are designed to provide access to the basic IPv6 features requited by TCP and UDP applications, including multicasting, while introducing a minimums of change into the system and providing complete (75) for existing IPv4 applications.

A.Windows 
B.Linux 
C.Unix 
D.DOS


最新試題

在以太網(wǎng)中發(fā)生沖突時采用退避機(jī)制,()優(yōu)先傳輸數(shù)據(jù)。

題型:單項選擇題

在網(wǎng)絡(luò)101.113.10.0/29中,能接收到目的地址是101.113.10.7的報文的主機(jī)數(shù)最多有()個。

題型:單項選擇題

運(yùn)行RIPv2協(xié)議的3臺路由器按照如下圖所示的方式連接,路由表項最少需經(jīng)過()可達(dá)到收斂狀態(tài)。

題型:單項選擇題

三重DES加密使用()個密鑰對明文進(jìn)行3次加密,其密鑰長度為()位。

題型:填空題

在Linux中,創(chuàng)建權(quán)限設(shè)置為-rw-rw-r--的普通文件,下面的說法中正確的是()。

題型:單項選擇題

在SwìtchA上Ping SwìtchB的地址192.168.1,100不通。通過步驟①到④解決了該故障,該故障產(chǎn)生的原因是()①使用display port vlan命令查看SwitchA和SwitchB接口配置②使用display ip interfáce brief命令查看SwitchA和SwitchB接口配置③使用port link-type trunk命令修改SwitchB配置④使用ping 192.168.1.100檢查,故障排除

題型:單項選擇題

在網(wǎng)絡(luò)運(yùn)行中,發(fā)現(xiàn)設(shè)備CPU長時間占用過高,經(jīng)檢查發(fā)現(xiàn)下圖中的"Number of topology changes"值頻繁變化,可初步判斷該故障由()導(dǎo)致,可能的原因是()。

題型:填空題

關(guān)于OSPF路由協(xié)議的說法中,正確的是()

題型:單項選擇題

假定用戶A、B分別在I1和I2兩個CA處取得了各自的證書,下面()是A、B互信的必要條件。

題型:單項選擇題

某網(wǎng)絡(luò)管理員在網(wǎng)絡(luò)檢測時,執(zhí)行了undo mac-address blackhole命令。該命令的作用是()

題型:單項選擇題